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Charles River Laboratories International, Inc. – ‘10-Q’ for 9/28/19 – ‘EX-101.LAB’

On:  Wednesday, 11/6/19, at 3:03pm ET   ·   For:  9/28/19   ·   Accession #:  1100682-19-30   ·   File #:  1-15943

Previous ‘10-Q’:  ‘10-Q’ on 7/31/19 for 6/29/19   ·   Next:  ‘10-Q’ on 5/7/20 for 3/28/20   ·   Latest:  ‘10-Q’ on 11/8/23 for 9/30/23   ·   1 Reference:  By:  Charles River Laboratories International, Inc. – ‘10-K’ on 2/17/21 for 12/26/20

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  As Of               Filer                 Filing    For·On·As Docs:Size

11/06/19  Charles River Labs Int’l, Inc.    10-Q        9/28/19  104:15M

Quarterly Report   —   Form 10-Q   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   1.77M 
 2: EX-10.1     Material Contract                                   HTML     59K 
 3: EX-10.2     Material Contract                                   HTML    100K 
 4: EX-10.3     Material Contract                                   HTML    135K 
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     38K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     38K 
 7: EX-32.1     Certification -- §906 - SOA'02                      HTML     34K 
68: R1          Cover Page                                          HTML     83K 
29: R2          Condensed Consolidated Statements of Income         HTML    133K 
                (Unaudited)                                                      
42: R3          Condensed Consolidated Statements of Comprehensive  HTML     63K 
                Income (Unaudited)                                               
99: R4          Condensed Consolidated Balance Sheets (Unaudited)   HTML    148K 
67: R5          Condensed Consolidated Balance Sheets (Unaudited)   HTML     52K 
                (Parenthetical)                                                  
28: R6          Condensed Consolidated Statements of Cash Flows     HTML    130K 
                (Unaudited)                                                      
41: R7          Condensed Consolidated Statements of Changes in     HTML    101K 
                Equity (Unaudited)                                               
102: R8          Basis of Presentation                               HTML     50K  
64: R9          Business Acquisitions                               HTML    143K 
23: R10         Revenue From Contracts With Customers               HTML    142K 
55: R11         Segment Information                                 HTML    208K 
88: R12         Supplemental Balance Sheet Information              HTML    101K 
76: R13         Venture Capital and Other Investments               HTML     44K 
24: R14         Fair Value                                          HTML    120K 
56: R15         Goodwill and Intangible Assets                      HTML     95K 
89: R16         Long-Term Debt and Finance Lease Obligations        HTML     98K 
77: R17         Equity and Noncontrolling Interests                 HTML    131K 
22: R18         Income Taxes                                        HTML     41K 
57: R19         Pension and Other Post-Retirement Benefit Plans     HTML     59K 
93: R20         Stock-Based Compensation                            HTML     57K 
59: R21         Foreign Currency Contracts                          HTML     89K 
25: R22         Restructuring and Asset Impairments                 HTML    151K 
37: R23         Leases                                              HTML    281K 
94: R24         Commitments and Contingencies                       HTML     33K 
60: R25         Basis of Presentation (Policies)                    HTML     58K 
26: R26         Business Acquisitions (Tables)                      HTML    115K 
38: R27         Revenue From Contracts With Customers (Tables)      HTML    165K 
95: R28         Segment Information (Tables)                        HTML    267K 
58: R29         Supplemental Balance Sheet Information (Tables)     HTML    112K 
79: R30         Fair Value (Tables)                                 HTML    106K 
92: R31         Goodwill and Intangible Assets (Tables)             HTML     97K 
54: R32         Long-Term Debt and Finance Lease Obligations        HTML     53K 
                (Tables)                                                         
21: R33         Equity and Noncontrolling Interests (Tables)        HTML    111K 
78: R34         Pension and Other Post-Retirement Benefit Plans     HTML     58K 
                (Tables)                                                         
91: R35         Stock-Based Compensation (Tables)                   HTML     55K 
53: R36         Foreign Currency Contracts (Tables)                 HTML     84K 
20: R37         Restructuring and Asset Impairments (Tables)        HTML    148K 
80: R38         Leases (Tables)                                     HTML    190K 
90: R39         BUSINESS ACQUISITIONS - Narrative (Details)         HTML    114K 
62: R40         BUSINESS ACQUISITIONS - Purchase Price Allocation   HTML     98K 
                (Details)                                                        
98: R41         BUSINESS ACQUISITIONS - Definite-Lived Intangible   HTML     50K 
                Assets (Details)                                                 
45: R42         BUSINESS ACQUISITIONS - Pro Forma Information       HTML     39K 
                (Details)                                                        
35: R43         REVENUE FROM CONTRACTS WITH CUSTOMERS -             HTML     50K 
                Disaggregation of Revenues by Major Business Line                
                (Details)                                                        
61: R44         REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule    HTML     60K 
                of Estimated Revenue Related to Performance                      
                Obligations (Details)                                            
97: R45         REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative   HTML     39K 
                (Details)                                                        
44: R46         REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule    HTML     38K 
                of Client Receivables, Contract Assets and                       
                Contract Liabilities (Details)                                   
34: R47         SEGMENT INFORMATION - Narrative (Details)           HTML     31K 
63: R48         SEGMENT INFORMATION - Revenue and Other Financial   HTML     51K 
                Information by Reportable Segment (Details)                      
96: R49         SEGMENT INFORMATION - Reconciliation of Segment     HTML     43K 
                Operating Income, Depreciation and Amortization,                 
                and Capital Expenditures (Details)                               
81: R50         SEGMENT INFORMATION - Revenue Per Significant       HTML     40K 
                Product or Service (Details)                                     
70: R51         SEGMENT INFORMATION - Summary of Unallocated        HTML     51K 
                Corporate Overhead (Details)                                     
18: R52         SEGMENT INFORMATION - Disaggregation of Revenue by  HTML     45K 
                Geographic Area (Details)                                        
51: R53         Supplemental Balance Sheet Information (Details)    HTML    127K 
82: R54         VENTURE CAPITAL AND OTHER INVESTMENTS - Narrative   HTML     52K 
                (Details)                                                        
71: R55         FAIR VALUE - Narrative (Details)                    HTML     40K 
19: R56         FAIR VALUE - Fair Value of Assets and Liabilities   HTML     67K 
                (Details)                                                        
52: R57         FAIR VALUE - Contingent Consideration (Details)     HTML     42K 
83: R58         GOODWILL AND INTANGIBLE ASSETS - Rollforward of     HTML     45K 
                Goodwill (Details)                                               
69: R59         GOODWILL AND INTANGIBLE ASSETS - Schedule of Other  HTML     54K 
                Intangible Assets (Details)                                      
31: R60         LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS -      HTML     67K 
                Schedule of Long-Term Debt (Details)                             
39: R61         LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS -      HTML    142K 
                Narrative (Details)                                              
103: R62         EQUITY AND NONCONTROLLING INTERESTS - Earnings Per  HTML     60K  
                Share (Details)                                                  
65: R63         EQUITY AND NONCONTROLLING INTERESTS - Narrative     HTML     73K 
                (Details)                                                        
32: R64         EQUITY AND NONCONTROLLING INTERESTS - Treasury      HTML     44K 
                Shares (Details)                                                 
40: R65         EQUITY AND NONCONTROLLING INTERESTS - Accumulated   HTML     58K 
                Other Comprehensive Income (Loss) (Details)                      
104: R66         EQUITY AND NONCONTROLLING INTERESTS - Rollforward   HTML     64K  
                of Redeemable Noncontrolling Interest (Details)                  
66: R67         Income Taxes (Details)                              HTML     49K 
30: R68         Pension and Other Post-Retirement Benefit Plans     HTML     53K 
                (Details)                                                        
43: R69         STOCK-BASED COMPENSATION - Stock Based              HTML     43K 
                Compensation Expense (Details)                                   
50: R70         STOCK-BASED COMPENSATION - Summary of Stock-Based   HTML     47K 
                Compensation Grants (Details)                                    
16: R71         FOREIGN CURRENCY CONTRACTS - Narrative (Details)    HTML     35K 
75: R72         FOREIGN CURRENCY CONTRACTS - Schedule of Notional   HTML     48K 
                and Fair Value of Foreign Currency Contracts                     
                (Details)                                                        
87: R73         FOREIGN CURRENCY CONTRACTS - Schedule of            HTML     45K 
                Derivative Instruments on Statements of Income                   
                (Details)                                                        
47: R74         RESTRUCTURING AND ASSET IMPAIRMENTS -               HTML     49K 
                Restructuring Costs by Classification on the                     
                Statements of Income (Details)                                   
13: R75         RESTRUCTURING AND ASSET IMPAIRMENTS -               HTML     44K 
                Restructuring Costs by Reportable Segment                        
                (Details)                                                        
72: R76         RESTRUCTURING AND ASSET IMPAIRMENTS -               HTML     68K 
                Restructuring Costs by Related to RMS                            
                Restructuring Initiative (Details)                               
84: R77         RESTRUCTURING AND ASSET IMPAIRMENTS - Narrative     HTML     55K 
                (Details)                                                        
46: R78         RESTRUCTURING AND ASSET IMPAIRMENTS - Rollforward   HTML     42K 
                of Severance and Transition Costs Liability                      
                (Details)                                                        
17: R79         LEASES - Schedule of Cumulative Effect of Adoption  HTML     54K 
                of ASC 842 (Details)                                             
49: R80         LEASES - Narrative (Details)                        HTML     52K 
15: R81         LEASES - Right-of-Use Lease Assets and Lease        HTML     47K 
                Liabilities in Condensed Consolidated Financial                  
                Statements (Details)                                             
74: R82         LEASES - Components of Operating and Finance Lease  HTML     47K 
                Costs (Details)                                                  
86: R83         LEASES - Supplemental Cash Flow Information         HTML     44K 
                (Details)                                                        
48: R84         LEASES - Weighted Average Remaining Lease Term and  HTML     41K 
                Discount Rates (Details)                                         
14: R85         LEASES - Schedule of Future Minimum Lease Payments  HTML     70K 
                Under Non-Cancellable Leases After Adoption                      
                (Details)                                                        
73: R86         LEASES - Schedule of Future Minimum Lease           HTML     71K 
                Payments, Non-Cancellable Operating Leases Before                
                Adoption (Details)                                               
100: R9999       Uncategorized Items - crl928201910-q.htm            HTML     34K  
33: XML         IDEA XML File -- Filing Summary                      XML    191K 
27: XML         XBRL Instance -- crl928201910-q_htm                  XML   4.21M 
101: EXCEL       IDEA Workbook of Financial Reports                  XLSX    118K  
 9: EX-101.CAL  XBRL Calculations -- crl-20190928_cal                XML    364K 
10: EX-101.DEF  XBRL Definitions -- crl-20190928_def                 XML    893K 
11: EX-101.LAB  XBRL Labels -- crl-20190928_lab                      XML   2.11M 
12: EX-101.PRE  XBRL Presentations -- crl-20190928_pre               XML   1.31M 
 8: EX-101.SCH  XBRL Schema -- crl-20190928                          XSD    199K 
85: JSON        XBRL Instance as JSON Data -- MetaLinks              473±   709K 
36: ZIP         XBRL Zipped Folder -- 0001100682-19-000030-xbrl      Zip    416K 


‘EX-101.LAB’   —   XBRL Labels — crl-20190928_lab


This Exhibit is an XBRL XML File.


                                                                                                                                                                                
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<link:label id="lab_us-gaap_CostOfSalesMember_9EBA06DD2A9AEE2411F41A44ECB4A25E_verboseLabel_en-US" xlink:label="lab_us-gaap_CostOfSalesMember_D34776D2C4035A719759FBB14D064BBA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Cost of services provided and products sold (excluding amortization of intangible assets) </link:label>
<link:label id="lab_us-gaap_CostOfSalesMember_9EBA06DD2A9AEE2411F41A44ECB4A25E_label_en-US" xlink:label="lab_us-gaap_CostOfSalesMember_D34776D2C4035A719759FBB14D064BBA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cost of Sales [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="loc_us-gaap_CostOfSalesMember_D34776D2C4035A719759FBB14D064BBA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpensesMember_797F53DE71B50DF6A36C1A44ECB4DFBA_terseLabel_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpensesMember_B14D1EB5028D5A5CA1288A873B532F08" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Selling, general and administrative </link:label>
<link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpensesMember_797F53DE71B50DF6A36C1A44ECB4DFBA_label_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpensesMember_B14D1EB5028D5A5CA1288A873B532F08" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Selling, General and Administrative Expenses [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_B14D1EB5028D5A5CA1288A873B532F08" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestructuringCostAndReserveLineItems_0111FA77DCF7B99EBE4B1A44ECB4A159_terseLabel_en-US" xlink:label="lab_us-gaap_RestructuringCostAndReserveLineItems_807FCDF351F3562D85C6AD851C592190" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restructuring Cost and Reserve [Line Items] </link:label>
<link:label id="lab_us-gaap_RestructuringCostAndReserveLineItems_0111FA77DCF7B99EBE4B1A44ECB4A159_label_en-US" xlink:label="lab_us-gaap_RestructuringCostAndReserveLineItems_807FCDF351F3562D85C6AD851C592190" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restructuring Cost and Reserve [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_807FCDF351F3562D85C6AD851C592190" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestructuringCharges_C8C4B1CFCAAF4DF1D7451A44ECB4606B_terseLabel_en-US" xlink:label="lab_us-gaap_RestructuringCharges_3811A01FE94A53A0930EEEC78867DD69" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restructuring costs </link:label>
<link:label id="lab_us-gaap_RestructuringCharges_C8C4B1CFCAAF4DF1D7451A44ECB4606B_label_en-US" xlink:label="lab_us-gaap_RestructuringCharges_3811A01FE94A53A0930EEEC78867DD69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restructuring Charges </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_3811A01FE94A53A0930EEEC78867DD69" xlink:type="locator"/>
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<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_FC3890AA6BDAC5024DA1D2E45D7B7CA2_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8E6A66C6B6905890A3417EEF2F9342C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets Disclosure [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8E6A66C6B6905890A3417EEF2F9342C5" xlink:type="locator"/>
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<link:label id="lab_crl_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_38F41AAFF421DD65461AD2E45D7B8015_terseLabel_en-US" xlink:label="lab_crl_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_952CE6C0073C5C8797BDE90DEFAA25DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Finite-Lived and Indefinite-Lived Intangible Assets, by Major Class [Table] </link:label>
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<link:loc xlink:href="crl-20190928.xsd#crl_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:label="loc_crl_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_952CE6C0073C5C8797BDE90DEFAA25DB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A3C5D5C87714FBB65D26D2E45D7BFBD1_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_0366581206FA54569CC9A08A5D65958A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets by Major Class [Axis] </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A3C5D5C87714FBB65D26D2E45D7BFBD1_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_0366581206FA54569CC9A08A5D65958A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets by Major Class [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_0366581206FA54569CC9A08A5D65958A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3210AB8EB2F0D2170C6BD2E45D7B7368_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_67FE2245261C5EE2A8AB8BABB5E66879" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Major Class Name [Domain] </link:label>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3210AB8EB2F0D2170C6BD2E45D7B7368_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_67FE2245261C5EE2A8AB8BABB5E66879" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-Lived Intangible Assets, Major Class Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_67FE2245261C5EE2A8AB8BABB5E66879" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OrderOrProductionBacklogMember_4245B7C5A492C7B24CA0D2E45D7CFAF4_verboseLabel_en-US" xlink:label="lab_us-gaap_OrderOrProductionBacklogMember_AE91E2EC45BD527A9BA0DB6B73B483BB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Backlog </link:label>
<link:label id="lab_us-gaap_OrderOrProductionBacklogMember_4245B7C5A492C7B24CA0D2E45D7CFAF4_label_en-US" xlink:label="lab_us-gaap_OrderOrProductionBacklogMember_AE91E2EC45BD527A9BA0DB6B73B483BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Order or Production Backlog [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrderOrProductionBacklogMember" xlink:label="loc_us-gaap_OrderOrProductionBacklogMember_AE91E2EC45BD527A9BA0DB6B73B483BB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TechnologyBasedIntangibleAssetsMember_32CA1FA13CF39383D313D2E45D7C9E76_verboseLabel_en-US" xlink:label="lab_us-gaap_TechnologyBasedIntangibleAssetsMember_14A2542C51A45DA7973E0BFC5782AEB1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Technology </link:label>
<link:label id="lab_us-gaap_TechnologyBasedIntangibleAssetsMember_32CA1FA13CF39383D313D2E45D7C9E76_label_en-US" xlink:label="lab_us-gaap_TechnologyBasedIntangibleAssetsMember_14A2542C51A45DA7973E0BFC5782AEB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Technology-Based Intangible Assets [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_14A2542C51A45DA7973E0BFC5782AEB1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TrademarksAndTradeNamesMember_A5A29E838C3065FFF490D2E45D7C70ED_terseLabel_en-US" xlink:label="lab_us-gaap_TrademarksAndTradeNamesMember_FFB0F373D2075841B607B5B00D9E65AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Trademarks and trade names </link:label>
<link:label id="lab_us-gaap_TrademarksAndTradeNamesMember_A5A29E838C3065FFF490D2E45D7C70ED_label_en-US" xlink:label="lab_us-gaap_TrademarksAndTradeNamesMember_FFB0F373D2075841B607B5B00D9E65AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Trademarks and Trade Names [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TrademarksAndTradeNamesMember" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_FFB0F373D2075841B607B5B00D9E65AC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherIntangibleAssetsMember_52FA019B1EB47BD561AFD2E45D7C65E5_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsMember_402E407B66D65A4CB22B0092791C5D57" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_OtherIntangibleAssetsMember_52FA019B1EB47BD561AFD2E45D7C65E5_label_en-US" xlink:label="lab_us-gaap_OtherIntangibleAssetsMember_402E407B66D65A4CB22B0092791C5D57" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Intangible Assets [Member] </link:label>
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<link:label id="lab_crl_FiniteLivedIntangibleAssetsOtherThanCustomerRelationshipsMember_CF533B9136B185D7244FD2E45D7CC29E_verboseLabel_en-US" xlink:label="lab_crl_FiniteLivedIntangibleAssetsOtherThanCustomerRelationshipsMember_96417CDBD99256518D956ED62188A43E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other intangible assets </link:label>
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<link:label id="lab_us-gaap_CustomerRelationshipsMember_3FAE17C44F6DF1C67399D2E45D7D90AD_terseLabel_en-US" xlink:label="lab_us-gaap_CustomerRelationshipsMember_FC1DE4922DB956D88F89BFA67D01989C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Client relationships </link:label>
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<link:label id="lab_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other current assets </link:label>
<link:label id="lab_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1_label_en-US" xlink:label="lab_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Current Assets [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCurrentAssetsMember" xlink:label="loc_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1" xlink:to="lab_us-gaap_OtherCurrentAssetsMember_3F219E06CC7B3D94D525F991752791B1" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party [Axis] </link:label>
<link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_364827E204970204F4A4F99460D3BDDD" xlink:type="arc"/>
<link:label id="lab_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party [Domain] </link:label>
<link:label id="lab_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B_label_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B" xlink:to="lab_us-gaap_RelatedPartyDomain_7FF6B8AB91D7325371D0F9948F24180B" xlink:type="arc"/>
<link:label id="lab_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52_terseLabel_en-US" xlink:label="lab_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Affiliated Entity </link:label>
<link:label id="lab_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52_label_en-US" xlink:label="lab_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AffiliatedEntityMember" xlink:label="loc_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52" xlink:to="lab_srt_AffiliatedEntityMember_8D27FF32B95D52E0A39DF994E8C6EF52" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Derivatives, Fair Value [Line Items] </link:label>
<link:label id="lab_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388_label_en-US" xlink:label="lab_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivatives, Fair Value [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativesFairValueLineItems" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388" xlink:to="lab_us-gaap_DerivativesFairValueLineItems_1E7CECE927FF04EE1557F8BF6C020388" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Notional amount </link:label>
<link:label id="lab_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9_label_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative, Notional Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNotionalAmount" xlink:label="loc_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9" xlink:to="lab_us-gaap_DerivativeNotionalAmount_9EB74978C1DC0C25F13CF8BF6C0381D9" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair value, derivative liability </link:label>
<link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66_label_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Liability, Fair Value, Gross Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66" xlink:to="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4F8D5E28D106D0549345F99257221D66" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair value, derivative asset </link:label>
<link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92_label_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Asset, Fair Value, Gross Asset </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92" xlink:to="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_7A5175D805A8F0EDC7E5F99286CC0F92" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueDisclosuresAbstract_7D3CB80A58C1C3ECCB64D2E45BC9A6B2_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract_911DBB0D7F685281A3D1DB1058417061" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_911DBB0D7F685281A3D1DB1058417061" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_911DBB0D7F685281A3D1DB1058417061" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract_911DBB0D7F685281A3D1DB1058417061" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_5EA771F01BAB16BC2A16D2E45BC958D6_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_1402ADEBB3D350C4B840797A06C74713" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> FAIR VALUE </link:label>
<link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_5EA771F01BAB16BC2A16D2E45BC958D6_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_1402ADEBB3D350C4B840797A06C74713" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_1402ADEBB3D350C4B840797A06C74713" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock_1402ADEBB3D350C4B840797A06C74713" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock_1402ADEBB3D350C4B840797A06C74713" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_A9B132C1CE593755616BF8BF6FE437A5_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_A9B132C1CE593755616BF8BF6FE437A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_A9B132C1CE593755616BF8BF6FE437A5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_A9B132C1CE593755616BF8BF6FE437A5" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract_A9B132C1CE593755616BF8BF6FE437A5" xlink:type="arc"/>
<link:label id="lab_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label>
<link:label id="lab_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6_label_en-US" xlink:label="lab_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6" xlink:to="lab_us-gaap_StatementTable_0179F5BA90D09B0683C2F8BF6FE42CA6" xlink:type="arc"/>
<link:label id="lab_us-gaap_CustomerRelationshipsMember_2670CFBF46A11227C21EF8BF6FE507EA_verboseLabel_en-US" xlink:label="lab_us-gaap_CustomerRelationshipsMember_2670CFBF46A11227C21EF8BF6FE507EA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Client relationships, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_2670CFBF46A11227C21EF8BF6FE507EA" xlink:type="locator"/>
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<link:label id="lab_crl_FiniteLivedIntangibleAssetsOtherThanCustomerRelationshipsMember_089041CDCF352ED3AE6EF8BF6FE54564_terseLabel_en-US" xlink:label="lab_crl_FiniteLivedIntangibleAssetsOtherThanCustomerRelationshipsMember_089041CDCF352ED3AE6EF8BF6FE54564" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other intangible assets, net </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_FiniteLivedIntangibleAssetsOtherThanCustomerRelationshipsMember" xlink:label="loc_crl_FiniteLivedIntangibleAssetsOtherThanCustomerRelationshipsMember_089041CDCF352ED3AE6EF8BF6FE54564" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementLineItems_BC1455FBAB122B787F27F8BF6FE59595_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_BC1455FBAB122B787F27F8BF6FE59595" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:label id="lab_us-gaap_StatementLineItems_BC1455FBAB122B787F27F8BF6FE59595_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_BC1455FBAB122B787F27F8BF6FE59595" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_BC1455FBAB122B787F27F8BF6FE59595" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsAbstract_28152EB09186A9FA2F5DF8BF6FE5F4E0_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_28152EB09186A9FA2F5DF8BF6FE5F4E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Assets </link:label>
<link:label id="lab_us-gaap_AssetsAbstract_28152EB09186A9FA2F5DF8BF6FE5F4E0_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_28152EB09186A9FA2F5DF8BF6FE5F4E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_28152EB09186A9FA2F5DF8BF6FE5F4E0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AssetsCurrentAbstract_008F09F30C85BD14818BF8BF6FE6C592_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_008F09F30C85BD14818BF8BF6FE6C592" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current assets: </link:label>
<link:label id="lab_us-gaap_AssetsCurrentAbstract_008F09F30C85BD14818BF8BF6FE6C592_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_008F09F30C85BD14818BF8BF6FE6C592" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current [Abstract] </link:label>
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<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_78525387440A8385CE63F8BF6FE6F83D_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_78525387440A8385CE63F8BF6FE6F83D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_78525387440A8385CE63F8BF6FE6F83D_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_78525387440A8385CE63F8BF6FE6F83D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, at Carrying Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_78525387440A8385CE63F8BF6FE6F83D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_95F27F87D31B5C45CB62F8BF6FE704D0_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_95F27F87D31B5C45CB62F8BF6FE704D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Trade receivables, net </link:label>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_95F27F87D31B5C45CB62F8BF6FE704D0_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_95F27F87D31B5C45CB62F8BF6FE704D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, after Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_95F27F87D31B5C45CB62F8BF6FE704D0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Inventories </link:label>
<link:label id="lab_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF_label_en-US" xlink:label="lab_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF" xlink:to="lab_us-gaap_InventoryNet_A4940E838887B7C0155DF8BF6FE732EF" xlink:type="arc"/>
<link:label id="lab_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid assets </link:label>
<link:label id="lab_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316" xlink:to="lab_us-gaap_PrepaidExpenseCurrent_ABAD3B1F99F0433BF868F8BF6FE7E316" xlink:type="arc"/>
<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other current assets </link:label>
<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense and Other Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0" xlink:to="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F0964C51D181FD0DB976F8BF6FE703B0" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current assets </link:label>
<link:label id="lab_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9" xlink:to="lab_us-gaap_AssetsCurrent_1D7EBDAE1547B86771F2F8BF6FE734B9" xlink:type="arc"/>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, plant and equipment, net </link:label>
<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_E061CD7B748F3C871CB5F8BF6FE728F4" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease right-of-use assets, net </link:label>
<link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Right-of-Use Asset </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAsset_44E9E9025EABA14E7751F8BF6FE8D7AD" xlink:type="arc"/>
<link:label id="lab_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:label id="lab_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9_label_en-US" xlink:label="lab_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9" xlink:to="lab_us-gaap_Goodwill_3E73E84432AE1694BB97F8BF6FE8DEC9" xlink:type="arc"/>
<link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_FB71D337028B0366DED4F8BF6FE88EC6_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_FB71D337028B0366DED4F8BF6FE88EC6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Client relationships and other intangible assets, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_FB71D337028B0366DED4F8BF6FE88EC6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_FB71D337028B0366DED4F8BF6FE88EC6" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsNet_FB71D337028B0366DED4F8BF6FE88EC6" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredIncomeTaxAssetsNet_97A05A29A64D13E25D90F8BF6FE85454_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxAssetsNet_97A05A29A64D13E25D90F8BF6FE85454" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred tax assets </link:label>
<link:label id="lab_us-gaap_DeferredIncomeTaxAssetsNet_97A05A29A64D13E25D90F8BF6FE85454_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxAssetsNet_97A05A29A64D13E25D90F8BF6FE85454" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Income Tax Assets, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_97A05A29A64D13E25D90F8BF6FE85454" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherAssetsNoncurrent_27D9F683D33F5E9FE662F8BF6FE815F5_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_27D9F683D33F5E9FE662F8BF6FE815F5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other assets </link:label>
<link:label id="lab_us-gaap_OtherAssetsNoncurrent_27D9F683D33F5E9FE662F8BF6FE815F5_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_27D9F683D33F5E9FE662F8BF6FE815F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_27D9F683D33F5E9FE662F8BF6FE815F5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_Assets_75F07C52F04C08F162C6F8BF6FE8FDCB_totalLabel_en-US" xlink:label="lab_us-gaap_Assets_75F07C52F04C08F162C6F8BF6FE8FDCB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total assets </link:label>
<link:label id="lab_us-gaap_Assets_75F07C52F04C08F162C6F8BF6FE8FDCB_label_en-US" xlink:label="lab_us-gaap_Assets_75F07C52F04C08F162C6F8BF6FE8FDCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_75F07C52F04C08F162C6F8BF6FE8FDCB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_AD5D39EEDFC6F352D3E8F8BF6FE9FB3E_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_AD5D39EEDFC6F352D3E8F8BF6FE9FB3E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities, Redeemable Noncontrolling Interests and Equity </link:label>
<link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_AD5D39EEDFC6F352D3E8F8BF6FE9FB3E_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_AD5D39EEDFC6F352D3E8F8BF6FE9FB3E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity [Abstract] </link:label>
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<link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_32A9AB765ADFAB171A81F8BF6FE99038_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_32A9AB765ADFAB171A81F8BF6FE99038" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current liabilities: </link:label>
<link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_32A9AB765ADFAB171A81F8BF6FE99038_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_32A9AB765ADFAB171A81F8BF6FE99038" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Current [Abstract] </link:label>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_68090CF51554AA060B17F8BF6FE97C4E_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_68090CF51554AA060B17F8BF6FE97C4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of long-term debt and finance leases </link:label>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_68090CF51554AA060B17F8BF6FE97C4E_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_68090CF51554AA060B17F8BF6FE97C4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Lease Obligation, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_68090CF51554AA060B17F8BF6FE97C4E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts payable </link:label>
<link:label id="lab_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Payable, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD" xlink:to="lab_us-gaap_AccountsPayableCurrent_046C635E97DF8EEBCF12F8BF6FE911FD" xlink:type="arc"/>
<link:label id="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued compensation </link:label>
<link:label id="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099_label_en-US" xlink:label="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Employee-related Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099" xlink:to="lab_us-gaap_EmployeeRelatedLiabilitiesCurrent_75DDF7AF6E26FE5A143AF8BF6FE94099" xlink:type="arc"/>
<link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred revenue </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E" xlink:to="lab_us-gaap_ContractWithCustomerLiabilityCurrent_8E1B03D19F67287CF4D2F8BF6FEAC96E" xlink:type="arc"/>
<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued liabilities </link:label>
<link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent_4955103F8FF695FF5E66F8BF6FEA70E8" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other current liabilities </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416" xlink:to="lab_us-gaap_OtherLiabilitiesCurrent_24AC59BFD26669B8D431F8BF6FEA5416" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current liabilities </link:label>
<link:label id="lab_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E" xlink:to="lab_us-gaap_LiabilitiesCurrent_E52BCA2CB4CA9B7DA130F8BF6FEA1F2E" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt, net and finance leases </link:label>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Lease Obligation </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9" xlink:to="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_6246397F978DB0F53D4EF8BF6FEA8DB9" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease right-of-use liabilities </link:label>
<link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E" xlink:to="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_AD63F672F3F15F4C1DD2F8BF6FEA9E9E" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Deferred tax liabilities </link:label>
<link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Income Tax Liabilities, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5" xlink:to="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_8E3EE81CA5D0C811DC1EF8BF6FEB68C5" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other long-term liabilities </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrent_19224AFAFCA91C75C9FCF8BF6FEB7BBE" xlink:type="arc"/>
<link:label id="lab_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities </link:label>
<link:label id="lab_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60_label_en-US" xlink:label="lab_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60" xlink:to="lab_us-gaap_Liabilities_B94EFC0302728C59FCBDF8BF6FEB0D60" xlink:type="arc"/>
<link:label id="lab_us-gaap_CommitmentsAndContingencies_DD3EEA1E5EB984ED883FF8BF6FEB4A2A_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_DD3EEA1E5EB984ED883FF8BF6FEB4A2A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commitments and contingencies (Note 17) </link:label>
<link:label id="lab_us-gaap_CommitmentsAndContingencies_DD3EEA1E5EB984ED883FF8BF6FEB4A2A_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_DD3EEA1E5EB984ED883FF8BF6FEB4A2A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_DD3EEA1E5EB984ED883FF8BF6FEB4A2A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_90908F66750763ED50F9F8BF6FEC638B_terseLabel_en-US" xlink:label="lab_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_90908F66750763ED50F9F8BF6FEC638B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redeemable noncontrolling interests </link:label>
<link:label id="lab_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_90908F66750763ED50F9F8BF6FEC638B_label_en-US" xlink:label="lab_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_90908F66750763ED50F9F8BF6FEC638B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Redeemable Noncontrolling Interest, Equity, Carrying Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_90908F66750763ED50F9F8BF6FEC638B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockholdersEquityAbstract_5F6148AB2F99F0395894F8BF6FEC28F3_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_5F6148AB2F99F0395894F8BF6FEC28F3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity: </link:label>
<link:label id="lab_us-gaap_StockholdersEquityAbstract_5F6148AB2F99F0395894F8BF6FEC28F3_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_5F6148AB2F99F0395894F8BF6FEC28F3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Attributable to Parent [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_5F6148AB2F99F0395894F8BF6FEC28F3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockValue_30C3F6283CFDE812F0C2F8BF6FEC6517_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockValue_30C3F6283CFDE812F0C2F8BF6FEC6517" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Preferred stock, $0.01 par value; 20,000 shares authorized; no shares issued and outstanding </link:label>
<link:label id="lab_us-gaap_PreferredStockValue_30C3F6283CFDE812F0C2F8BF6FEC6517_label_en-US" xlink:label="lab_us-gaap_PreferredStockValue_30C3F6283CFDE812F0C2F8BF6FEC6517" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Value, Issued </link:label>
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<link:label id="lab_us-gaap_TreasuryStockMember_42041AAF08039207D91D421F521DEA2C_label_en-US" xlink:label="lab_us-gaap_TreasuryStockMember_42041AAF08039207D91D421F521DEA2C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Treasury Stock [Member] </link:label>
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<link:label id="lab_crl_TotalEquityAttributabletoCommonShareholdersMember_46FE01AB6D2B2544858D421F521D4411_terseLabel_en-US" xlink:label="lab_crl_TotalEquityAttributabletoCommonShareholdersMember_46FE01AB6D2B2544858D421F521D4411" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total Equity Attributable to Common Shareholders </link:label>
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<link:label id="lab_us-gaap_NoncontrollingInterestMember_4590BB9BDC84EF8528B4421F521D1E61_terseLabel_en-US" xlink:label="lab_us-gaap_NoncontrollingInterestMember_4590BB9BDC84EF8528B4421F521D1E61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest </link:label>
<link:label id="lab_us-gaap_NoncontrollingInterestMember_4590BB9BDC84EF8528B4421F521D1E61_label_en-US" xlink:label="lab_us-gaap_NoncontrollingInterestMember_4590BB9BDC84EF8528B4421F521D1E61" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest [Member] </link:label>
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<link:label id="lab_us-gaap_TypeOfAdoptionMember_8F2A106794CDC0B6B4A9421F521E582E_terseLabel_en-US" xlink:label="lab_us-gaap_TypeOfAdoptionMember_8F2A106794CDC0B6B4A9421F521E582E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Type of Adoption [Domain] </link:label>
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<link:label id="lab_us-gaap_AccountingStandardsUpdate201601Member_D2C793A7088A34082F4B421F521EE982_terseLabel_en-US" xlink:label="lab_us-gaap_AccountingStandardsUpdate201601Member_D2C793A7088A34082F4B421F521EE982" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounting Standards Update 2016-01 </link:label>
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<link:label id="lab_crl_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandExcludingRedeemableNoncontrollingInterest_319B60337C9CA5BF7BBD421F521F260C_label_en-US" xlink:label="lab_crl_NetIncomeLossIncludingPortionAttributabletoNoncontrollingInterestandExcludingRedeemableNoncontrollingInterest_319B60337C9CA5BF7BBD421F521F260C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest and Excluding Redeemable Noncontrolling Interest </link:label>
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<link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E382B8E56A84CFEFC6F3421F5220C201_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E382B8E56A84CFEFC6F3421F5220C201" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other comprehensive income (loss) </link:label>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C0A25A784FD39126566E421F522040CA_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C0A25A784FD39126566E421F522040CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Issuance of stock under employee compensation plans (in shares) </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C0A25A784FD39126566E421F522040CA_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C0A25A784FD39126566E421F522040CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_C0A25A784FD39126566E421F522040CA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_FA49A871D7ECAD564E5C421F52210344_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_FA49A871D7ECAD564E5C421F52210344" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Issuance of stock under employee compensation plans </link:label>
<link:label id="lab_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_FA49A871D7ECAD564E5C421F52210344_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_FA49A871D7ECAD564E5C421F52210344" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_FA49A871D7ECAD564E5C421F52210344" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TreasuryStockSharesAcquired_92D0FE56467D591B3B61421F52217731_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockSharesAcquired_92D0FE56467D591B3B61421F52217731" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Acquisition of treasury shares (in shares) </link:label>
<link:label id="lab_us-gaap_TreasuryStockSharesAcquired_92D0FE56467D591B3B61421F52217731_label_en-US" xlink:label="lab_us-gaap_TreasuryStockSharesAcquired_92D0FE56467D591B3B61421F52217731" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Treasury Stock, Shares, Acquired </link:label>
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<link:label id="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_ED1E5B644D59B7CA51DC421F52211710_negatedLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_ED1E5B644D59B7CA51DC421F52211710" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Acquisition of treasury shares </link:label>
<link:label id="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_ED1E5B644D59B7CA51DC421F52211710_label_en-US" xlink:label="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_ED1E5B644D59B7CA51DC421F52211710" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Treasury Stock, Value, Acquired, Cost Method </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_ED1E5B644D59B7CA51DC421F52211710" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E22A16DA459C2B08AFF421F52218CC4_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E22A16DA459C2B08AFF421F52218CC4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock-based compensation </link:label>
<link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E22A16DA459C2B08AFF421F52218CC4_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E22A16DA459C2B08AFF421F52218CC4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> APIC, Share-based Payment Arrangement, Increase for Cost Recognition </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3E22A16DA459C2B08AFF421F52218CC4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SharesIssued_F3B24150A3633DDD8B01421F5221EF3C_periodEndLabel_en-US" xlink:label="lab_us-gaap_SharesIssued_F3B24150A3633DDD8B01421F5221EF3C" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Ending balance (in shares) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_F3B24150A3633DDD8B01421F5221EF3C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4E46BF6FEE11889B353A421F522107A1_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4E46BF6FEE11889B353A421F522107A1" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Ending balance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4E46BF6FEE11889B353A421F522107A1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_75EFF71091A2854AD8E7D2E45D9DC6A8_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_DEB15020E4EB59099A8673DF64B6B32C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Organization, Consolidation and Presentation of Financial Statements [Abstract] </link:label>
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<link:label id="lab_us-gaap_UseOfEstimates_140F7CEFE5A408DB03F8D2E45D9D7EEC_terseLabel_en-US" xlink:label="lab_us-gaap_UseOfEstimates_37BC1617910A5AB2996D59F9A98090D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Use of Estimates </link:label>
<link:label id="lab_us-gaap_UseOfEstimates_140F7CEFE5A408DB03F8D2E45D9D7EEC_label_en-US" xlink:label="lab_us-gaap_UseOfEstimates_37BC1617910A5AB2996D59F9A98090D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Use of Estimates, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_37BC1617910A5AB2996D59F9A98090D0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_B186129B196BA18186DDD2E45D9D4497_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock_7993B9A0CC42551CA6583C89466418CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Consolidation </link:label>
<link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_B186129B196BA18186DDD2E45D9D4497_label_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock_7993B9A0CC42551CA6583C89466418CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Consolidation, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_7993B9A0CC42551CA6583C89466418CF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FiscalPeriod_B843749A5690EAB43903D2E45D9DECEC_terseLabel_en-US" xlink:label="lab_us-gaap_FiscalPeriod_61CA7330769457A8B4F96EE90A301174" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fiscal Period </link:label>
<link:label id="lab_us-gaap_FiscalPeriod_B843749A5690EAB43903D2E45D9DECEC_label_en-US" xlink:label="lab_us-gaap_FiscalPeriod_61CA7330769457A8B4F96EE90A301174" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fiscal Period, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiscalPeriod" xlink:label="loc_us-gaap_FiscalPeriod_61CA7330769457A8B4F96EE90A301174" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_699CC2D9AF9E94D76FA6D2E45D9D1769_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_BFEF891CE2FD5F90948E73973E6F00C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Newly Adopted and Newly Issued Accounting Pronouncements </link:label>
<link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_699CC2D9AF9E94D76FA6D2E45D9D1769_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_BFEF891CE2FD5F90948E73973E6F00C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> New Accounting Pronouncements, Policy [Policy Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_BFEF891CE2FD5F90948E73973E6F00C8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestructuringReserveRollForward_741EC6A8D1C7E34257291A44EC94B101_terseLabel_en-US" xlink:label="lab_us-gaap_RestructuringReserveRollForward_C943023FF4335654B289E10B0A5B74F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restructuring Reserve [Roll Forward] </link:label>
<link:label id="lab_us-gaap_RestructuringReserveRollForward_741EC6A8D1C7E34257291A44EC94B101_label_en-US" xlink:label="lab_us-gaap_RestructuringReserveRollForward_C943023FF4335654B289E10B0A5B74F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restructuring Reserve [Roll Forward] </link:label>
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<link:label id="lab_us-gaap_RestructuringReserve_85FF814BC2CC927213271A44EC945B26_periodStartLabel_en-US" xlink:label="lab_us-gaap_RestructuringReserve_FFE5AB26C4B9548D99E323A9E31C7BF7" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Beginning balance </link:label>
<link:label id="lab_us-gaap_RestructuringReserve_85FF814BC2CC927213271A44EC945B26_label_en-US" xlink:label="lab_us-gaap_RestructuringReserve_FFE5AB26C4B9548D99E323A9E31C7BF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restructuring Reserve </link:label>
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<link:label id="lab_us-gaap_RestructuringAndRelatedCostIncurredCost_41DD874D4B5F0A718E701A44EC949EB1_terseLabel_en-US" xlink:label="lab_us-gaap_RestructuringAndRelatedCostIncurredCost_206679B9389D585C85270E060A931607" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Expense (excluding non-cash charges) </link:label>
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<link:label id="lab_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_2C5EA78AB6DC9F580AC21A44EC9413D7_negatedTerseLabel_en-US" xlink:label="lab_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_DEAF810A131E5F0EB0AF91DC30A0A1FD" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Payments / utilization </link:label>
<link:label id="lab_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_2C5EA78AB6DC9F580AC21A44EC9413D7_label_en-US" xlink:label="lab_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_DEAF810A131E5F0EB0AF91DC30A0A1FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restructuring Reserve, Payments for Restructuring and Settled without Cash </link:label>
<link:label id="lab_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_2C5EA78AB6DC9F580AC21A44EC9413D7_documentation_en-US" xlink:label="lab_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_DEAF810A131E5F0EB0AF91DC30A0A1FD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Restructuring Reserve, Payments for Restructuring and Settled without Cash </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash" xlink:label="loc_crl_RestructuringReservePaymentsforRestructuringandSettledwithoutCash_DEAF810A131E5F0EB0AF91DC30A0A1FD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestructuringReserveTranslationAdjustment_9B4AED3E80F0B9C92DF61A44EC95642D_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RestructuringReserveTranslationAdjustment_D86F22CD80A652BCA668B93DF685304A" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Foreign currency adjustments </link:label>
<link:label id="lab_us-gaap_RestructuringReserveTranslationAdjustment_9B4AED3E80F0B9C92DF61A44EC95642D_label_en-US" xlink:label="lab_us-gaap_RestructuringReserveTranslationAdjustment_D86F22CD80A652BCA668B93DF685304A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restructuring Reserve, Foreign Currency Translation Gain (Loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveTranslationAdjustment" xlink:label="loc_us-gaap_RestructuringReserveTranslationAdjustment_D86F22CD80A652BCA668B93DF685304A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestructuringReserveTranslationAdjustment_D86F22CD80A652BCA668B93DF685304A" xlink:to="lab_us-gaap_RestructuringReserveTranslationAdjustment_D86F22CD80A652BCA668B93DF685304A" xlink:type="arc"/>
<link:label id="lab_us-gaap_RestructuringReserve_9EB0AF4C9DB46DA44B361A44EC95B269_periodEndLabel_en-US" xlink:label="lab_us-gaap_RestructuringReserve_9732450EFAA157B5B12CC77478C07A1A" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Ending balance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_9732450EFAA157B5B12CC77478C07A1A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestructuringReserve_9732450EFAA157B5B12CC77478C07A1A" xlink:to="lab_us-gaap_RestructuringReserve_9732450EFAA157B5B12CC77478C07A1A" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeasesAbstract_A0762CCBCF85B8A6BC281A44EC72D8C9_label_en-US" xlink:label="lab_us-gaap_LeasesAbstract_8B3B1CB9A4FB54F68F0083DDAA187C0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeasesAbstract" xlink:label="loc_us-gaap_LeasesAbstract_8B3B1CB9A4FB54F68F0083DDAA187C0D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeasesAbstract_8B3B1CB9A4FB54F68F0083DDAA187C0D" xlink:to="lab_us-gaap_LeasesAbstract_8B3B1CB9A4FB54F68F0083DDAA187C0D" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeaseCost_EF76CBCFF838D78BAE2D1A44EC72B0ED_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost_B5749BCC16605611B4C735E52AB80A21" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease costs </link:label>
<link:label id="lab_us-gaap_OperatingLeaseCost_EF76CBCFF838D78BAE2D1A44EC72B0ED_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost_B5749BCC16605611B4C735E52AB80A21" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:label="loc_us-gaap_OperatingLeaseCost_B5749BCC16605611B4C735E52AB80A21" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseCost_B5749BCC16605611B4C735E52AB80A21" xlink:to="lab_us-gaap_OperatingLeaseCost_B5749BCC16605611B4C735E52AB80A21" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_238F807A2B57811CA0471A44EC726A9F_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_4E728AFDF3A65DBDBDFCAE013DF67F9F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of right-of-use assets </link:label>
<link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_238F807A2B57811CA0471A44EC726A9F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_4E728AFDF3A65DBDBDFCAE013DF67F9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Right-of-Use Asset, Amortization </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_4E728AFDF3A65DBDBDFCAE013DF67F9F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_4E728AFDF3A65DBDBDFCAE013DF67F9F" xlink:to="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_4E728AFDF3A65DBDBDFCAE013DF67F9F" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseInterestExpense_E71EF69D394722A7196D1A44EC72A504_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense_8CA63883F3035BA1ACED775C8592DD2E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest on lease liabilities </link:label>
<link:label id="lab_us-gaap_FinanceLeaseInterestExpense_E71EF69D394722A7196D1A44EC72A504_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense_8CA63883F3035BA1ACED775C8592DD2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Interest Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_8CA63883F3035BA1ACED775C8592DD2E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseInterestExpense_8CA63883F3035BA1ACED775C8592DD2E" xlink:to="lab_us-gaap_FinanceLeaseInterestExpense_8CA63883F3035BA1ACED775C8592DD2E" xlink:type="arc"/>
<link:label id="lab_us-gaap_ShortTermLeaseCost_896C40D194EDFEDB27B31A44EC73DBA4_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermLeaseCost_E33D3A95B4795DEEBCB1C1ABB027D5FA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Short-term lease costs </link:label>
<link:label id="lab_us-gaap_ShortTermLeaseCost_896C40D194EDFEDB27B31A44EC73DBA4_label_en-US" xlink:label="lab_us-gaap_ShortTermLeaseCost_E33D3A95B4795DEEBCB1C1ABB027D5FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Short-term Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermLeaseCost" xlink:label="loc_us-gaap_ShortTermLeaseCost_E33D3A95B4795DEEBCB1C1ABB027D5FA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermLeaseCost_E33D3A95B4795DEEBCB1C1ABB027D5FA" xlink:to="lab_us-gaap_ShortTermLeaseCost_E33D3A95B4795DEEBCB1C1ABB027D5FA" xlink:type="arc"/>
<link:label id="lab_us-gaap_VariableLeaseCost_0CF5CE12381B5C8FED411A44EC73CED9_terseLabel_en-US" xlink:label="lab_us-gaap_VariableLeaseCost_7DDBD77CCAC356FD8DF627769DA83481" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable lease costs </link:label>
<link:label id="lab_us-gaap_VariableLeaseCost_0CF5CE12381B5C8FED411A44EC73CED9_label_en-US" xlink:label="lab_us-gaap_VariableLeaseCost_7DDBD77CCAC356FD8DF627769DA83481" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableLeaseCost" xlink:label="loc_us-gaap_VariableLeaseCost_7DDBD77CCAC356FD8DF627769DA83481" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableLeaseCost_7DDBD77CCAC356FD8DF627769DA83481" xlink:to="lab_us-gaap_VariableLeaseCost_7DDBD77CCAC356FD8DF627769DA83481" xlink:type="arc"/>
<link:label id="lab_us-gaap_SubleaseIncome_2050499D8DF8C508F2DD1A44EC7342E7_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_SubleaseIncome_7609B7DAFCC85748BCCB729A0DBEF8CF" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Sublease income </link:label>
<link:label id="lab_us-gaap_SubleaseIncome_2050499D8DF8C508F2DD1A44EC7342E7_label_en-US" xlink:label="lab_us-gaap_SubleaseIncome_7609B7DAFCC85748BCCB729A0DBEF8CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Sublease Income </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubleaseIncome" xlink:label="loc_us-gaap_SubleaseIncome_7609B7DAFCC85748BCCB729A0DBEF8CF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubleaseIncome_7609B7DAFCC85748BCCB729A0DBEF8CF" xlink:to="lab_us-gaap_SubleaseIncome_7609B7DAFCC85748BCCB729A0DBEF8CF" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeaseCost_BC411EAA6123A886E7851A44EC736A59_totalLabel_en-US" xlink:label="lab_us-gaap_LeaseCost_EAAF965D25B75C52A9C347D5FE32AD2D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total lease costs </link:label>
<link:label id="lab_us-gaap_LeaseCost_BC411EAA6123A886E7851A44EC736A59_label_en-US" xlink:label="lab_us-gaap_LeaseCost_EAAF965D25B75C52A9C347D5FE32AD2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease, Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCost" xlink:label="loc_us-gaap_LeaseCost_EAAF965D25B75C52A9C347D5FE32AD2D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseCost_EAAF965D25B75C52A9C347D5FE32AD2D" xlink:to="lab_us-gaap_LeaseCost_EAAF965D25B75C52A9C347D5FE32AD2D" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfGoodwillTable_1E765114742A1634D6E5084B237A67FD_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTable_1E765114742A1634D6E5084B237A67FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Goodwill [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfGoodwillTable_1E765114742A1634D6E5084B237A67FD_label_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTable_1E765114742A1634D6E5084B237A67FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Goodwill [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_1E765114742A1634D6E5084B237A67FD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F_terseLabel_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Segments [Axis] </link:label>
<link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F_label_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segments [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F" xlink:to="lab_us-gaap_StatementBusinessSegmentsAxis_15A70CF3DBC1D2FDD016084B237A7A6F" xlink:type="arc"/>
<link:label id="lab_us-gaap_SegmentDomain_3729FE426B15C3663064084B237A2ED5_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentDomain_3729FE426B15C3663064084B237A2ED5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Segments [Domain] </link:label>
<link:label id="lab_us-gaap_SegmentDomain_3729FE426B15C3663064084B237A2ED5_label_en-US" xlink:label="lab_us-gaap_SegmentDomain_3729FE426B15C3663064084B237A2ED5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segments [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_3729FE426B15C3663064084B237A2ED5" xlink:type="locator"/>
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<link:label id="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0_verboseLabel_en-US" xlink:label="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> RMS </link:label>
<link:label id="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0_label_en-US" xlink:label="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Research Models and Services [Member] </link:label>
<link:label id="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0_documentation_en-US" xlink:label="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents Research Models and Services segment of the entity which includes sales of research models, genetically engineered models and services (GEMS), consulting and staffing services (CSS), research animal diagnostics, discovery services, in vitro and avian vaccine services. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ResearchModelsAndServicesMember" xlink:label="loc_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0" xlink:to="lab_crl_ResearchModelsAndServicesMember_921395E140FEC5CAB805084B237B57C0" xlink:type="arc"/>
<link:label id="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B_verboseLabel_en-US" xlink:label="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> DSA </link:label>
<link:label id="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B_label_en-US" xlink:label="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Discovery and Safety Assessment [Member] </link:label>
<link:label id="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B_documentation_en-US" xlink:label="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"/>
<link:loc xlink:href="crl-20190928.xsd#crl_DiscoveryandSafetyAssessmentMember" xlink:label="loc_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B" xlink:to="lab_crl_DiscoveryandSafetyAssessmentMember_481F4AE111C524B444F0084B237B372B" xlink:type="arc"/>
<link:label id="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9_terseLabel_en-US" xlink:label="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Manufacturing </link:label>
<link:label id="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9_label_en-US" xlink:label="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Manufacturing Support [Member] </link:label>
<link:label id="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9_documentation_en-US" xlink:label="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Manufacturing Support [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ManufacturingSupportMember" xlink:label="loc_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9" xlink:to="lab_crl_ManufacturingSupportMember_230FEF41EF95766F85B6084B237B53A9" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label>
<link:label id="lab_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC_label_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC" xlink:to="lab_us-gaap_GoodwillLineItems_E0103EAA09B1E4008FA0084B237B1DEC" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Changes in gross carrying amount and accumulated amortization of goodwill </link:label>
<link:label id="lab_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3_label_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3" xlink:to="lab_us-gaap_GoodwillRollForward_C13642E20BE8FE06A747084B237BD0E3" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC_periodStartLabel_en-US" xlink:label="lab_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> December 29, 2018 </link:label>
<link:label id="lab_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC_label_en-US" xlink:label="lab_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC" xlink:to="lab_us-gaap_GoodwillGross_E7A4B1F2CC2FB2C19B75084B237CC9EC" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Acquisitions </link:label>
<link:label id="lab_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1_label_en-US" xlink:label="lab_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill, Acquired During Period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1" xlink:to="lab_us-gaap_GoodwillAcquiredDuringPeriod_D5547B8FDF384E1DE8B8084B237C02D1" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Foreign Exchange </link:label>
<link:label id="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4_label_en-US" xlink:label="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill, Foreign Currency Translation Gain (Loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4" xlink:to="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_86D4B1991CB4707F266F084B237C13D4" xlink:type="arc"/>
<link:label id="lab_us-gaap_GoodwillGross_DECA0D08D0BF36AFF47F084B237CEE42_periodEndLabel_en-US" xlink:label="lab_us-gaap_GoodwillGross_DECA0D08D0BF36AFF47F084B237CEE42" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> September 28, 2019 </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_DECA0D08D0BF36AFF47F084B237CEE42" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillGross_DECA0D08D0BF36AFF47F084B237CEE42" xlink:to="lab_us-gaap_GoodwillGross_DECA0D08D0BF36AFF47F084B237CEE42" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_96E4D0F47D14CC2B6C531A44ED071BB4_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48001EE5EA7B597C85A15E0C3298DD37" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> FOREIGN CURRENCY CONTRACTS </link:label>
<link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_96E4D0F47D14CC2B6C531A44ED071BB4_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48001EE5EA7B597C85A15E0C3298DD37" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Instruments and Hedging Activities Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48001EE5EA7B597C85A15E0C3298DD37" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48001EE5EA7B597C85A15E0C3298DD37" xlink:to="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_48001EE5EA7B597C85A15E0C3298DD37" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_9CFEFD87EBF58F4330F5D2E45E1208FA_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_096C2938049D5710B02D29FEB3741353" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Cumulative Effect of Adoption of ASC 842 </link:label>
<link:label id="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_9CFEFD87EBF58F4330F5D2E45E1208FA_label_en-US" xlink:label="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_096C2938049D5710B02D29FEB3741353" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:label="loc_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_096C2938049D5710B02D29FEB3741353" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_096C2938049D5710B02D29FEB3741353" xlink:to="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_096C2938049D5710B02D29FEB3741353" xlink:type="arc"/>
<link:label id="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_E7D09A797E504DFB0C0AD2E45E128222_terseLabel_en-US" xlink:label="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_4DF146D3E86C5AF3B6135F8DF0094427" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Right-of-Use Lease Assets and Lease Liabilities in Condensed Financial Statements </link:label>
<link:label id="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_E7D09A797E504DFB0C0AD2E45E128222_label_en-US" xlink:label="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_4DF146D3E86C5AF3B6135F8DF0094427" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets And Liabilities, Lessee [Table Text Block] </link:label>
<link:label id="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_E7D09A797E504DFB0C0AD2E45E128222_documentation_en-US" xlink:label="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_4DF146D3E86C5AF3B6135F8DF0094427" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Assets And Liabilities, Lessee [Table Text Block] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_AssetsAndLiabilitiesLesseeTableTextBlock" xlink:label="loc_crl_AssetsAndLiabilitiesLesseeTableTextBlock_4DF146D3E86C5AF3B6135F8DF0094427" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_AssetsAndLiabilitiesLesseeTableTextBlock_4DF146D3E86C5AF3B6135F8DF0094427" xlink:to="lab_crl_AssetsAndLiabilitiesLesseeTableTextBlock_4DF146D3E86C5AF3B6135F8DF0094427" xlink:type="arc"/>
<link:label id="lab_us-gaap_LeaseCostTableTextBlock_9D1C93A95E51195A45B3D2E45E13D903_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseCostTableTextBlock_1B8307E4093F59C08A371AF4923754FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Operating and Finance Lease Costs and Supplemental Cash Flow Information </link:label>
<link:label id="lab_us-gaap_LeaseCostTableTextBlock_9D1C93A95E51195A45B3D2E45E13D903_label_en-US" xlink:label="lab_us-gaap_LeaseCostTableTextBlock_1B8307E4093F59C08A371AF4923754FF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lease, Cost [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCostTableTextBlock" xlink:label="loc_us-gaap_LeaseCostTableTextBlock_1B8307E4093F59C08A371AF4923754FF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseCostTableTextBlock_1B8307E4093F59C08A371AF4923754FF" xlink:to="lab_us-gaap_LeaseCostTableTextBlock_1B8307E4093F59C08A371AF4923754FF" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_A5F1F41BB82D13F1ADF6D2E45E1327F3_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6C39284CF7715BBB91CD52D9A9E5EE35" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Lease Payments Under Non-Cancellable Operating Leases After Adoption </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_A5F1F41BB82D13F1ADF6D2E45E1327F3_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6C39284CF7715BBB91CD52D9A9E5EE35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Maturity [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6C39284CF7715BBB91CD52D9A9E5EE35" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6C39284CF7715BBB91CD52D9A9E5EE35" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6C39284CF7715BBB91CD52D9A9E5EE35" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_CD86530BAB260731FF11D2E45E139624_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_1BBC6E6413C85F72B1736D416AD51B1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Lease Payments Under Non-Cancellable Finance Leases After Adoption </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_CD86530BAB260731FF11D2E45E139624_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_1BBC6E6413C85F72B1736D416AD51B1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Maturity [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock" xlink:label="loc_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_1BBC6E6413C85F72B1736D416AD51B1A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_1BBC6E6413C85F72B1736D416AD51B1A" xlink:to="lab_us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock_1BBC6E6413C85F72B1736D416AD51B1A" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_4FA69B72F5EFF048F881D2E45E130D9D_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_FFE26FE9C4545E1C818471FB8F5602C1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Lease Payments, Non-Cancellable Operating Leases Before Adoption </link:label>
<link:label id="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_4FA69B72F5EFF048F881D2E45E130D9D_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_FFE26FE9C4545E1C818471FB8F5602C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_FFE26FE9C4545E1C818471FB8F5602C1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_FFE26FE9C4545E1C818471FB8F5602C1" xlink:to="lab_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_FFE26FE9C4545E1C818471FB8F5602C1" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock_73AC7C3F3E431EC78071D2E45E1387FF_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock_D5C265EC11FD5E10AE1E7164DF10B1F3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Lease Payments, Non-Cancellable Capital Leases Before Adoption </link:label>
<link:label id="lab_us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock_73AC7C3F3E431EC78071D2E45E1387FF_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFutureMinimumLeasePaymentsForCapitalLeasesTableTextBlock_D5C265EC11FD5E10AE1E7164DF10B1F3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_9E0473B836E79EF0ABDED2E45DCE74EB_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_1E891A1A5C8A530282B8B09C8107F0A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> GOODWILL AND INTANGIBLE ASSETS </link:label>
<link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_9E0473B836E79EF0ABDED2E45DCE74EB_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_1E891A1A5C8A530282B8B09C8107F0A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill and Intangible Assets Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_1E891A1A5C8A530282B8B09C8107F0A2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtDisclosureAbstract_39AD241FCF175909F678F8BF6DC75998_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract_39AD241FCF175909F678F8BF6DC75998" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Disclosure [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_39AD241FCF175909F678F8BF6DC75998" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD" xlink:to="lab_us-gaap_DebtInstrumentTable_A0F0F4B94E1FD50FCA5EF8BF6DC7EEAD" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongtermDebtTypeAxis_7B72617F12FFD81F4B02F8BF6DC8D75A_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_7B72617F12FFD81F4B02F8BF6DC8D75A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Axis] </link:label>
<link:label id="lab_us-gaap_LongtermDebtTypeAxis_7B72617F12FFD81F4B02F8BF6DC8D75A_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_7B72617F12FFD81F4B02F8BF6DC8D75A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_7B72617F12FFD81F4B02F8BF6DC8D75A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongtermDebtTypeDomain_83A01A9F8C47919CA309F8BF6DC86526_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_83A01A9F8C47919CA309F8BF6DC86526" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Domain] </link:label>
<link:label id="lab_us-gaap_LongtermDebtTypeDomain_83A01A9F8C47919CA309F8BF6DC86526_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_83A01A9F8C47919CA309F8BF6DC86526" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_83A01A9F8C47919CA309F8BF6DC86526" xlink:type="locator"/>
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<link:label id="lab_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7_terseLabel_en-US" xlink:label="lab_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Term loans </link:label>
<link:label id="lab_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7_label_en-US" xlink:label="lab_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Medium-term Notes [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MediumTermNotesMember" xlink:label="loc_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7" xlink:to="lab_us-gaap_MediumTermNotesMember_A22F3AD2CB9DE8F5A897F8BF6DC994F7" xlink:type="arc"/>
<link:label id="lab_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revolving facility </link:label>
<link:label id="lab_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0_label_en-US" xlink:label="lab_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0" xlink:to="lab_us-gaap_LineOfCreditMember_8A269EE8D58CACE73760F8BF6DC987F0" xlink:type="arc"/>
<link:label id="lab_us-gaap_SeniorNotesMember_A6FE2ABAD01C01D2968AF8BF6DCAA3E7_terseLabel_en-US" xlink:label="lab_us-gaap_SeniorNotesMember_A6FE2ABAD01C01D2968AF8BF6DCAA3E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2026 Senior Notes </link:label>
<link:label id="lab_us-gaap_SeniorNotesMember_A6FE2ABAD01C01D2968AF8BF6DCAA3E7_label_en-US" xlink:label="lab_us-gaap_SeniorNotesMember_A6FE2ABAD01C01D2968AF8BF6DCAA3E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Senior Notes [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember" xlink:label="loc_us-gaap_SeniorNotesMember_A6FE2ABAD01C01D2968AF8BF6DCAA3E7" xlink:type="locator"/>
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<link:label id="lab_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451_terseLabel_en-US" xlink:label="lab_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other debt </link:label>
<link:label id="lab_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451_label_en-US" xlink:label="lab_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Long-term Debt [Member] </link:label>
<link:label id="lab_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451_documentation_en-US" xlink:label="lab_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents other debt instruments not elsewhere specified in the taxonomy. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_OtherLongTermDebtMember" xlink:label="loc_crl_OtherLongTermDebtMember_0855A8B245CC7AB724D0F8BF6DCF1451" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentLineItems_3D887AF0521EB8E0437FF8BF6DCFBA8D_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_3D887AF0521EB8E0437FF8BF6DCFBA8D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentLineItems_3D887AF0521EB8E0437FF8BF6DCFBA8D_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_3D887AF0521EB8E0437FF8BF6DCFBA8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label>
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<link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_1C39EB259ACD9246859AF8BF6DD0E524_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_1C39EB259ACD9246859AF8BF6DD0E524" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt, gross </link:label>
<link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_1C39EB259ACD9246859AF8BF6DD0E524_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_1C39EB259ACD9246859AF8BF6DD0E524" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Gross </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiability_ED477866A664F9E354BBF8BF6DD063E8_verboseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_ED477866A664F9E354BBF8BF6DD063E8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Finance leases (Note 16) </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiability_ED477866A664F9E354BBF8BF6DD063E8_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_ED477866A664F9E354BBF8BF6DD063E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability </link:label>
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<link:label id="lab_us-gaap_CapitalLeaseObligations_982EB62D6DBFDFA04BAFF8BF6DD02D10_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligations_982EB62D6DBFDFA04BAFF8BF6DD02D10" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance leases (Note 16) </link:label>
<link:label id="lab_us-gaap_CapitalLeaseObligations_982EB62D6DBFDFA04BAFF8BF6DD02D10_label_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligations_982EB62D6DBFDFA04BAFF8BF6DD02D10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Lease Obligations </link:label>
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<link:label id="lab_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5_totalLabel_en-US" xlink:label="lab_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total debt and finance leases </link:label>
<link:label id="lab_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5_label_en-US" xlink:label="lab_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Gross And Lease Obligation </link:label>
<link:label id="lab_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5_documentation_en-US" xlink:label="lab_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Gross And Lease Obligation </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_LongtermDebtGrossAndLeaseObligation" xlink:label="loc_crl_LongtermDebtGrossAndLeaseObligation_C10EA6C0864BBF786711F8BF6DD01CD5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtCurrent_A55DBA9FA8D5742AF3ADF8BF6DD03CA5_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_A55DBA9FA8D5742AF3ADF8BF6DD03CA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of long-term debt </link:label>
<link:label id="lab_us-gaap_LongTermDebtCurrent_A55DBA9FA8D5742AF3ADF8BF6DD03CA5_label_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent_A55DBA9FA8D5742AF3ADF8BF6DD03CA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Current Maturities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_A55DBA9FA8D5742AF3ADF8BF6DD03CA5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityCurrent_FEBA930F7589BFD2F6EBF8BF6DD14F6F_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityCurrent_FEBA930F7589BFD2F6EBF8BF6DD14F6F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of finance leases (Note 16) </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityCurrent_FEBA930F7589BFD2F6EBF8BF6DD14F6F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityCurrent_FEBA930F7589BFD2F6EBF8BF6DD14F6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_FEBA930F7589BFD2F6EBF8BF6DD14F6F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CapitalLeaseObligationsCurrent_0CB2E0376CFBC242A9FDF8BF6DD27CD0_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsCurrent_0CB2E0376CFBC242A9FDF8BF6DD27CD0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of finance leases (Note 16) </link:label>
<link:label id="lab_us-gaap_CapitalLeaseObligationsCurrent_0CB2E0376CFBC242A9FDF8BF6DD27CD0_label_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsCurrent_0CB2E0376CFBC242A9FDF8BF6DD27CD0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Capital Lease Obligations, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_0CB2E0376CFBC242A9FDF8BF6DD27CD0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_1DF94EE45C2CF8A7CFDFF8BF6DD35FC8_totalLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_1DF94EE45C2CF8A7CFDFF8BF6DD35FC8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Current portion of long-term debt and finance leases </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_1DF94EE45C2CF8A7CFDFF8BF6DD35FC8" xlink:type="locator"/>
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<link:label id="lab_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D_totalLabel_en-US" xlink:label="lab_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Long-term debt and finance leases </link:label>
<link:label id="lab_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D_label_en-US" xlink:label="lab_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-Term Debt And Lease Obligation, Net Of Current Portion </link:label>
<link:label id="lab_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D_documentation_en-US" xlink:label="lab_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Long-Term Debt And Lease Obligation, Net Of Current Portion </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion" xlink:label="loc_crl_LongTermDebtAndLeaseObligationNetOfCurrentPortion_220AF641107357B54884F8BF6DD32E0D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3584288130842338961AF8BF6DD382E5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3584288130842338961AF8BF6DD382E5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt discount and debt issuance costs </link:label>
<link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3584288130842338961AF8BF6DD382E5_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3584288130842338961AF8BF6DD382E5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3584288130842338961AF8BF6DD382E5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_EquityAbstract_8BB3E33D66F7ADD16324F8BF6CE609BA_label_en-US" xlink:label="lab_us-gaap_EquityAbstract_8BB3E33D66F7ADD16324F8BF6CE609BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_8BB3E33D66F7ADD16324F8BF6CE609BA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_3F6D3787F37ABE323EAAF8BF6CE6B8D4_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_3F6D3787F37ABE323EAAF8BF6CE6B8D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Table] </link:label>
<link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_3F6D3787F37ABE323EAAF8BF6CE6B8D4_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_3F6D3787F37ABE323EAAF8BF6CE6B8D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_3F6D3787F37ABE323EAAF8BF6CE6B8D4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccumulatedTranslationAdjustmentMember_4A580EF91F7A7FA20D90F8BF6CE89DE9_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedTranslationAdjustmentMember_4A580EF91F7A7FA20D90F8BF6CE89DE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Foreign Currency Translation Adjustment and Other </link:label>
<link:label id="lab_us-gaap_AccumulatedTranslationAdjustmentMember_4A580EF91F7A7FA20D90F8BF6CE89DE9_label_en-US" xlink:label="lab_us-gaap_AccumulatedTranslationAdjustmentMember_4A580EF91F7A7FA20D90F8BF6CE89DE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Foreign Currency Adjustment Attributable to Parent [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_4A580EF91F7A7FA20D90F8BF6CE89DE9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_EF175CB8DA1978B36A79F8BF6CEEEFBC_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_EF175CB8DA1978B36A79F8BF6CEEEFBC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Pension and Other Post-Retirement Benefit Plans </link:label>
<link:label id="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_EF175CB8DA1978B36A79F8BF6CEEEFBC_label_en-US" xlink:label="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_EF175CB8DA1978B36A79F8BF6CEEEFBC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_EF175CB8DA1978B36A79F8BF6CEEEFBC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9614B1C005E0FDFACBAEF8BF6CEE8833_verboseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9614B1C005E0FDFACBAEF8BF6CEE8833" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Total </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9614B1C005E0FDFACBAEF8BF6CEE8833" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_39B853C55B93AA0D91DCF8BF6CEFD8A9_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_39B853C55B93AA0D91DCF8BF6CEFD8A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Line Items] </link:label>
<link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_39B853C55B93AA0D91DCF8BF6CEFD8A9_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_39B853C55B93AA0D91DCF8BF6CEFD8A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_39B853C55B93AA0D91DCF8BF6CEFD8A9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_A744D55854E0678C72FEF8BF6CEF2EAB_terseLabel_en-US" xlink:label="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_A744D55854E0678C72FEF8BF6CEF2EAB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward] </link:label>
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<link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_44E798E073AF5495A1DCF8BF6CF04302_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_44E798E073AF5495A1DCF8BF6CF04302" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other comprehensive loss before reclassifications </link:label>
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<link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeTax_3D3407B93CA26BFC5499F8BF6CF13C60_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeTax_3D3407B93CA26BFC5499F8BF6CF13C60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Comprehensive Income (Loss), before Tax </link:label>
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<link:label id="lab_us-gaap_OtherComprehensiveIncomeLossTax_D2E22199562E13815E5DF8BF6CF1029E_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossTax_D2E22199562E13815E5DF8BF6CF1029E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Comprehensive Income (Loss), Tax </link:label>
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<link:label id="lab_us-gaap_SegmentReportingAbstract_ACDC3DA591962192BE3ED2E45DBD1FB3_label_en-US" xlink:label="lab_us-gaap_SegmentReportingAbstract_AC33D3938CA25F72A36229A813C335B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting [Abstract] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_660D2834965D2D916D75D2E45DBE688A_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_9408BB1E4EF056618428D8F6D7D66071" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_660D2834965D2D916D75D2E45DBE688A_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_9408BB1E4EF056618428D8F6D7D66071" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment [Table] </link:label>
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<link:label id="lab_srt_ConsolidationItemsAxis_7DD7FE45530345D6A157D2E45DBEBA94_label_en-US" xlink:label="lab_srt_ConsolidationItemsAxis_E5CAD0E3EF8155BBA6798EB807CDF4A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Consolidation Items [Axis] </link:label>
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<link:label id="lab_srt_ConsolidationItemsDomain_8207B41AA729012DC65DD2E45DBEBF70_label_en-US" xlink:label="lab_srt_ConsolidationItemsDomain_1E9C9BFA2C6357D2A27A290CD321B99E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Consolidation Items [Domain] </link:label>
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<link:label id="lab_us-gaap_CorporateNonSegmentMember_871C3F6AD4CFB182327ED2E45DBE4EC8_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember_B292AE0B62EB5AF9BC0D2213EC97AE7A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Unallocated corporate </link:label>
<link:label id="lab_us-gaap_CorporateNonSegmentMember_871C3F6AD4CFB182327ED2E45DBE4EC8_label_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember_B292AE0B62EB5AF9BC0D2213EC97AE7A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Corporate, Non-Segment [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_B292AE0B62EB5AF9BC0D2213EC97AE7A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SegmentReportingInformationLineItems_2CBA51580AA8D1CD9902D2E45DBF0AB6_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_CD346AD9B0DB5DF5852771B678522A97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Segment Reporting Information [Line Items] </link:label>
<link:label id="lab_us-gaap_SegmentReportingInformationLineItems_2CBA51580AA8D1CD9902D2E45DBF0AB6_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_CD346AD9B0DB5DF5852771B678522A97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Segment Reporting Information [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_CD346AD9B0DB5DF5852771B678522A97" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_1C9881220AEE38D5D84DD2E45DBFDFC1_verboseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_2353141340125666BD68924F8D6985A4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Stock-based compensation </link:label>
<link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_1C9881220AEE38D5D84DD2E45DBFDFC1_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_2353141340125666BD68924F8D6985A4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Expense </link:label>
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<link:label id="lab_crl_SalariesAndBonus_FD1AE7FE7DD30F69E4C9D2E45DBF8065_terseLabel_en-US" xlink:label="lab_crl_SalariesAndBonus_DB2D7C0224AE5F1584CD6CCC54095048" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Compensation, benefits, and other employee-related expenses </link:label>
<link:label id="lab_crl_SalariesAndBonus_FD1AE7FE7DD30F69E4C9D2E45DBF8065_label_en-US" xlink:label="lab_crl_SalariesAndBonus_DB2D7C0224AE5F1584CD6CCC54095048" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Salaries and Bonus </link:label>
<link:label id="lab_crl_SalariesAndBonus_FD1AE7FE7DD30F69E4C9D2E45DBF8065_documentation_en-US" xlink:label="lab_crl_SalariesAndBonus_DB2D7C0224AE5F1584CD6CCC54095048" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Expenditures for salaries and bonuses for officers and non-officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense. </link:label>
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<link:label id="lab_crl_AuditTaxAndRelatedExpenses_C0E2DC028EF509E0011DD2E45DBFFA76_terseLabel_en-US" xlink:label="lab_crl_AuditTaxAndRelatedExpenses_09ED449D58245792BD4F32652BE7DF8C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> External consulting and other service expenses </link:label>
<link:label id="lab_crl_AuditTaxAndRelatedExpenses_C0E2DC028EF509E0011DD2E45DBFFA76_label_en-US" xlink:label="lab_crl_AuditTaxAndRelatedExpenses_09ED449D58245792BD4F32652BE7DF8C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Audit Tax and Related Expenses </link:label>
<link:label id="lab_crl_AuditTaxAndRelatedExpenses_C0E2DC028EF509E0011DD2E45DBFFA76_documentation_en-US" xlink:label="lab_crl_AuditTaxAndRelatedExpenses_09ED449D58245792BD4F32652BE7DF8C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the sum total of audit, tax and related expenses. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_AuditTaxAndRelatedExpenses" xlink:label="loc_crl_AuditTaxAndRelatedExpenses_09ED449D58245792BD4F32652BE7DF8C" xlink:type="locator"/>
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<link:label id="lab_crl_TransactionCosts_175A9ABEFC6F99765394D2E45DC017AE_label_en-US" xlink:label="lab_crl_TransactionCosts_2B0F0A64D28D5FD1AB2A46A97AE45D22" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Transaction Costs </link:label>
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<link:label id="lab_us-gaap_OtherGeneralExpense_B09B0BD3D539F6DC773DD2E45DC0CF48_terseLabel_en-US" xlink:label="lab_us-gaap_OtherGeneralExpense_01FA89E4EDB55C598E264D90D71D17F5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other general unallocated corporate </link:label>
<link:label id="lab_us-gaap_OtherGeneralExpense_B09B0BD3D539F6DC773DD2E45DC0CF48_label_en-US" xlink:label="lab_us-gaap_OtherGeneralExpense_01FA89E4EDB55C598E264D90D71D17F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other General Expense </link:label>
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<link:label id="lab_crl_UnallocatedCorporateOverhead_93BF578E5058F3602DA1D2E45DC02DF9_totalLabel_en-US" xlink:label="lab_crl_UnallocatedCorporateOverhead_27CD9F10296751C5AF922C361D5D6BFB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total unallocated corporate expense </link:label>
<link:label id="lab_crl_UnallocatedCorporateOverhead_93BF578E5058F3602DA1D2E45DC02DF9_label_en-US" xlink:label="lab_crl_UnallocatedCorporateOverhead_27CD9F10296751C5AF922C361D5D6BFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Unallocated Corporate Overhead </link:label>
<link:label id="lab_crl_UnallocatedCorporateOverhead_93BF578E5058F3602DA1D2E45DC02DF9_documentation_en-US" xlink:label="lab_crl_UnallocatedCorporateOverhead_27CD9F10296751C5AF922C361D5D6BFB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the amount of unallocated corporate expenses. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_UnallocatedCorporateOverhead" xlink:label="loc_crl_UnallocatedCorporateOverhead_27CD9F10296751C5AF922C361D5D6BFB" xlink:type="locator"/>
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<link:label id="lab_crl_ResearchModelsAndServicesMember_FD4A1DF006B984B36D5736CD0DC2A103_terseLabel_en-US" xlink:label="lab_crl_ResearchModelsAndServicesMember_FD4A1DF006B984B36D5736CD0DC2A103" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> RMS </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ResearchModelsAndServicesMember" xlink:label="loc_crl_ResearchModelsAndServicesMember_FD4A1DF006B984B36D5736CD0DC2A103" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ResearchModelsAndServicesMember_FD4A1DF006B984B36D5736CD0DC2A103" xlink:to="lab_crl_ResearchModelsAndServicesMember_FD4A1DF006B984B36D5736CD0DC2A103" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total revenue </link:label>
<link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer, Excluding Assessed Tax </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_150CE43BB985EE0B47CD36CD0DC3F769" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_C3DFE4969D679587BABC1AFC4D198F19_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_7B38695802D55CAAA4B04EBFF0DB2C79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Reconciliation of the Numerator and Denominator in the Computations of the Basic and Diluted Earnings Per Share </link:label>
<link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_C3DFE4969D679587BABC1AFC4D198F19_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_7B38695802D55CAAA4B04EBFF0DB2C79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_7B38695802D55CAAA4B04EBFF0DB2C79" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_7B38695802D55CAAA4B04EBFF0DB2C79" xlink:to="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_7B38695802D55CAAA4B04EBFF0DB2C79" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_6A5C61F879827AB93F3D1AFC4D199AF0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_3E045C1F899F592BA80F9E8099CF3D8A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Accumulated Other Comprehensive Income (Loss) </link:label>
<link:label id="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_6A5C61F879827AB93F3D1AFC4D199AF0_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_3E045C1F899F592BA80F9E8099CF3D8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_3E045C1F899F592BA80F9E8099CF3D8A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_3E045C1F899F592BA80F9E8099CF3D8A" xlink:to="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_3E045C1F899F592BA80F9E8099CF3D8A" xlink:type="arc"/>
<link:label id="lab_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_63AEBD33CF44475419491AFC4D19C590_terseLabel_en-US" xlink:label="lab_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_A8FE4D0790CC54F5BD85B266EF448652" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rollforward Redeemable Noncontrolling Interest </link:label>
<link:label id="lab_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_63AEBD33CF44475419491AFC4D19C590_label_en-US" xlink:label="lab_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_A8FE4D0790CC54F5BD85B266EF448652" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Redeemable Noncontrolling Interest [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestTableTextBlock" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_A8FE4D0790CC54F5BD85B266EF448652" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_A8FE4D0790CC54F5BD85B266EF448652" xlink:to="lab_us-gaap_RedeemableNoncontrollingInterestTableTextBlock_A8FE4D0790CC54F5BD85B266EF448652" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Nonoperating Income (Expense) </link:label>
<link:label id="lab_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Nonoperating Income (Expense) [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5" xlink:to="lab_us-gaap_OtherNonoperatingIncomeExpenseMember_8875372865BFAD3606184188334745B5" xlink:type="arc"/>
<link:label id="lab_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85_terseLabel_en-US" xlink:label="lab_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Axis] </link:label>
<link:label id="lab_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85_label_en-US" xlink:label="lab_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85" xlink:to="lab_srt_RangeAxis_A5DDF6A9515E2B96739D418833482C85" xlink:type="arc"/>
<link:label id="lab_srt_RangeMember_B302C950379C08C6591541883348875C_terseLabel_en-US" xlink:label="lab_srt_RangeMember_B302C950379C08C6591541883348875C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Domain] </link:label>
<link:label id="lab_srt_RangeMember_B302C950379C08C6591541883348875C_label_en-US" xlink:label="lab_srt_RangeMember_B302C950379C08C6591541883348875C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statistical Measurement [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_B302C950379C08C6591541883348875C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeMember_B302C950379C08C6591541883348875C" xlink:to="lab_srt_RangeMember_B302C950379C08C6591541883348875C" xlink:type="arc"/>
<link:label id="lab_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164_terseLabel_en-US" xlink:label="lab_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Minimum </link:label>
<link:label id="lab_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164_label_en-US" xlink:label="lab_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Minimum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164" xlink:to="lab_srt_MinimumMember_46B82D6FB0864D0E8BEE418833480164" xlink:type="arc"/>
<link:label id="lab_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5_terseLabel_en-US" xlink:label="lab_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum </link:label>
<link:label id="lab_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5_label_en-US" xlink:label="lab_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5" xlink:to="lab_srt_MaximumMember_86D68A6408D7C7EEDB6D418833491CC5" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Axis] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A" xlink:to="lab_us-gaap_DebtInstrumentAxis_11F37BFFBFE05E7D8D7F41883349756A" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Name [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346" xlink:to="lab_us-gaap_DebtInstrumentNameDomain_2DB0EFB272FBC29E536B418833495346" xlink:type="arc"/>
<link:label id="lab_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348_terseLabel_en-US" xlink:label="lab_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> $1.65 Billion Credit Facility </link:label>
<link:label id="lab_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348_label_en-US" xlink:label="lab_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> One Billion Six Hundred And Fifty Million Credit Facility [Member] </link:label>
<link:label id="lab_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348_documentation_en-US" xlink:label="lab_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> One Billion Six Hundred And Fifty Million Credit Facility [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember" xlink:label="loc_crl_OneBillionSixHundredAndFiftyMillionCreditFacilityMember_AC7FA9620416DD3318F641883349B348" xlink:type="locator"/>
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<link:label id="lab_crl_TwoBillionThreeHundredMillionCreditFacilityMember_A6DCAED0EAEE890C07E741883349034B_terseLabel_en-US" xlink:label="lab_crl_TwoBillionThreeHundredMillionCreditFacilityMember_A6DCAED0EAEE890C07E741883349034B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> $2.3 Billion Credit Facility </link:label>
<link:label id="lab_crl_TwoBillionThreeHundredMillionCreditFacilityMember_A6DCAED0EAEE890C07E741883349034B_label_en-US" xlink:label="lab_crl_TwoBillionThreeHundredMillionCreditFacilityMember_A6DCAED0EAEE890C07E741883349034B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Two Billion Three Hundred Million Credit Facility [Member] </link:label>
<link:label id="lab_crl_TwoBillionThreeHundredMillionCreditFacilityMember_A6DCAED0EAEE890C07E741883349034B_documentation_en-US" xlink:label="lab_crl_TwoBillionThreeHundredMillionCreditFacilityMember_A6DCAED0EAEE890C07E741883349034B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Two Billion Three Hundred Million Credit Facility [Member] </link:label>
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<link:label id="lab_crl_OneBillionFiveHundredAndFiftyMillionCreditFacilityMember_17372EF80709775D38A34188334FC4A2_terseLabel_en-US" xlink:label="lab_crl_OneBillionFiveHundredAndFiftyMillionCreditFacilityMember_17372EF80709775D38A34188334FC4A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> $1.55 Billion Credit Facility </link:label>
<link:label id="lab_crl_OneBillionFiveHundredAndFiftyMillionCreditFacilityMember_17372EF80709775D38A34188334FC4A2_label_en-US" xlink:label="lab_crl_OneBillionFiveHundredAndFiftyMillionCreditFacilityMember_17372EF80709775D38A34188334FC4A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> One Billion Five Hundred And Fifty Million Credit Facility [Member] </link:label>
<link:label id="lab_crl_OneBillionFiveHundredAndFiftyMillionCreditFacilityMember_17372EF80709775D38A34188334FC4A2_documentation_en-US" xlink:label="lab_crl_OneBillionFiveHundredAndFiftyMillionCreditFacilityMember_17372EF80709775D38A34188334FC4A2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> One Billion Five Hundred And Fifty Million Credit Facility [Member] </link:label>
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<link:label id="lab_crl_TwoBillionFiftyMillionCreditFacilityMember_7112D833F2FB636B59914188334F7E4C_terseLabel_en-US" xlink:label="lab_crl_TwoBillionFiftyMillionCreditFacilityMember_7112D833F2FB636B59914188334F7E4C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> $2.05 Billion Credit Facility </link:label>
<link:label id="lab_crl_TwoBillionFiftyMillionCreditFacilityMember_7112D833F2FB636B59914188334F7E4C_label_en-US" xlink:label="lab_crl_TwoBillionFiftyMillionCreditFacilityMember_7112D833F2FB636B59914188334F7E4C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Two Billion Fifty Million Credit Facility [Member] </link:label>
<link:label id="lab_crl_TwoBillionFiftyMillionCreditFacilityMember_7112D833F2FB636B59914188334F7E4C_documentation_en-US" xlink:label="lab_crl_TwoBillionFiftyMillionCreditFacilityMember_7112D833F2FB636B59914188334F7E4C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Two Billion Fifty Million Credit Facility [Member] </link:label>
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<link:label id="lab_crl_TwoBillionThreeHundredMillionCreditFacilityTermLoanMember_A14DC675C9EDF9E664B84188334F6C24_terseLabel_en-US" xlink:label="lab_crl_TwoBillionThreeHundredMillionCreditFacilityTermLoanMember_A14DC675C9EDF9E664B84188334F6C24" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Term Loan Facility </link:label>
<link:label id="lab_crl_TwoBillionThreeHundredMillionCreditFacilityTermLoanMember_A14DC675C9EDF9E664B84188334F6C24_label_en-US" xlink:label="lab_crl_TwoBillionThreeHundredMillionCreditFacilityTermLoanMember_A14DC675C9EDF9E664B84188334F6C24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Two Billion Three Hundred Million Credit Facility, Term Loan [Member] </link:label>
<link:label id="lab_crl_TwoBillionThreeHundredMillionCreditFacilityTermLoanMember_A14DC675C9EDF9E664B84188334F6C24_documentation_en-US" xlink:label="lab_crl_TwoBillionThreeHundredMillionCreditFacilityTermLoanMember_A14DC675C9EDF9E664B84188334F6C24" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Two Billion Three Hundred Million Credit Facility, Term Loan [Member] </link:label>
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<link:label id="lab_crl_SeniorNotesDue2026Member_672886958B3070A337144188334FF7BB_terseLabel_en-US" xlink:label="lab_crl_SeniorNotesDue2026Member_672886958B3070A337144188334FF7BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Senior Notes Due 2026 </link:label>
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<link:loc xlink:href="crl-20190928.xsd#crl_SeniorNotesDue2026Member" xlink:label="loc_crl_SeniorNotesDue2026Member_672886958B3070A337144188334FF7BB" xlink:type="locator"/>
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<link:label id="lab_crl_SeniorNotesDue2028Member_4D28DD8BBA2A1A8218C6418833503AD6_terseLabel_en-US" xlink:label="lab_crl_SeniorNotesDue2028Member_4D28DD8BBA2A1A8218C6418833503AD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Senior Notes Due 2028 </link:label>
<link:label id="lab_crl_SeniorNotesDue2028Member_4D28DD8BBA2A1A8218C6418833503AD6_label_en-US" xlink:label="lab_crl_SeniorNotesDue2028Member_4D28DD8BBA2A1A8218C6418833503AD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Senior Notes Due 2028 [Member] </link:label>
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<link:loc xlink:href="crl-20190928.xsd#crl_SeniorNotesDue2028Member" xlink:label="loc_crl_SeniorNotesDue2028Member_4D28DD8BBA2A1A8218C6418833503AD6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BridgeLoanMember_C614C4059A193900292A418833507A99_terseLabel_en-US" xlink:label="lab_us-gaap_BridgeLoanMember_C614C4059A193900292A418833507A99" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Bridge Loan </link:label>
<link:label id="lab_us-gaap_BridgeLoanMember_C614C4059A193900292A418833507A99_label_en-US" xlink:label="lab_us-gaap_BridgeLoanMember_C614C4059A193900292A418833507A99" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Bridge Loan [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BridgeLoanMember" xlink:label="loc_us-gaap_BridgeLoanMember_C614C4059A193900292A418833507A99" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD_terseLabel_en-US" xlink:label="lab_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Letter of Credit </link:label>
<link:label id="lab_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD_label_en-US" xlink:label="lab_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Letter of Credit [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="loc_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD" xlink:to="lab_us-gaap_LetterOfCreditMember_8F4969D302FAA12CA0FB41883350FBFD" xlink:type="arc"/>
<link:label id="lab_us-gaap_LineOfCreditMember_0C2F3FEBA7B835FF3B85418833500BD8_verboseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditMember_0C2F3FEBA7B835FF3B85418833500BD8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Credit Facility </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_0C2F3FEBA7B835FF3B85418833500BD8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SeniorNotesMember_8F21394CB8A0A2F80471418833512F72_verboseLabel_en-US" xlink:label="lab_us-gaap_SeniorNotesMember_8F21394CB8A0A2F80471418833512F72" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Senior Notes </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember" xlink:label="loc_us-gaap_SeniorNotesMember_8F21394CB8A0A2F80471418833512F72" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CreditFacilityAxis_6178A542C0BCB0344D1241883351969B_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis_6178A542C0BCB0344D1241883351969B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Credit Facility [Axis] </link:label>
<link:label id="lab_us-gaap_CreditFacilityAxis_6178A542C0BCB0344D1241883351969B_label_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis_6178A542C0BCB0344D1241883351969B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Credit Facility [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_6178A542C0BCB0344D1241883351969B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CreditFacilityDomain_BFC29FF1444C463D80D7418833518D27_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityDomain_BFC29FF1444C463D80D7418833518D27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Credit Facility [Domain] </link:label>
<link:label id="lab_us-gaap_CreditFacilityDomain_BFC29FF1444C463D80D7418833518D27_label_en-US" xlink:label="lab_us-gaap_CreditFacilityDomain_BFC29FF1444C463D80D7418833518D27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Credit Facility [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_BFC29FF1444C463D80D7418833518D27" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevolvingCreditFacilityMember_5EA50219AD867312E2AC4188335160C5_terseLabel_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember_5EA50219AD867312E2AC4188335160C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revolving Credit Facility </link:label>
<link:label id="lab_us-gaap_RevolvingCreditFacilityMember_5EA50219AD867312E2AC4188335160C5_label_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember_5EA50219AD867312E2AC4188335160C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revolving Credit Facility [Member] </link:label>
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<link:label id="lab_us-gaap_VariableRateAxis_9A31498BBDBBA74B2F1F418833522C38_terseLabel_en-US" xlink:label="lab_us-gaap_VariableRateAxis_9A31498BBDBBA74B2F1F418833522C38" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable Rate [Axis] </link:label>
<link:label id="lab_us-gaap_VariableRateAxis_9A31498BBDBBA74B2F1F418833522C38_label_en-US" xlink:label="lab_us-gaap_VariableRateAxis_9A31498BBDBBA74B2F1F418833522C38" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Variable Rate [Axis] </link:label>
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<link:label id="lab_us-gaap_LondonInterbankOfferedRateLIBORMember_8F2C3480F94122F41AF141883352FFA5_terseLabel_en-US" xlink:label="lab_us-gaap_LondonInterbankOfferedRateLIBORMember_8F2C3480F94122F41AF141883352FFA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> LIBOR </link:label>
<link:label id="lab_us-gaap_LondonInterbankOfferedRateLIBORMember_8F2C3480F94122F41AF141883352FFA5_label_en-US" xlink:label="lab_us-gaap_LondonInterbankOfferedRateLIBORMember_8F2C3480F94122F41AF141883352FFA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> London Interbank Offered Rate (LIBOR) [Member] </link:label>
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<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodAxis_0776533FAA20348B9F71418833521702_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodAxis_0776533FAA20348B9F71418833521702" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption, Period [Axis] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodAxis_0776533FAA20348B9F71418833521702_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodAxis_0776533FAA20348B9F71418833521702" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption, Period [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_0776533FAA20348B9F71418833521702" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_0387220EE3769A56AE8641883353B5EB_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_0387220EE3769A56AE8641883353B5EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption, Period [Domain] </link:label>
<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_0387220EE3769A56AE8641883353B5EB_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_0387220EE3769A56AE8641883353B5EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption, Period [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_0387220EE3769A56AE8641883353B5EB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_C7C79AC6E28ADC402C88418833536D26_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_C7C79AC6E28ADC402C88418833536D26" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redemption Period One </link:label>
<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_C7C79AC6E28ADC402C88418833536D26_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_C7C79AC6E28ADC402C88418833536D26" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption, Period One [Member] </link:label>
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<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_AF7992F25ADB774CF25441883353A4C8_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_AF7992F25ADB774CF25441883353A4C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redemption Period Two </link:label>
<link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_AF7992F25ADB774CF25441883353A4C8_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_AF7992F25ADB774CF25441883353A4C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption, Period Two [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_AF7992F25ADB774CF25441883353A4C8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SubsequentEventTypeAxis_DC5CFB99624BCA75F8E241883354F437_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis_DC5CFB99624BCA75F8E241883354F437" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Subsequent Event Type [Axis] </link:label>
<link:label id="lab_us-gaap_SubsequentEventTypeAxis_DC5CFB99624BCA75F8E241883354F437_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis_DC5CFB99624BCA75F8E241883354F437" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Event Type [Axis] </link:label>
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<link:label id="lab_us-gaap_SubsequentEventTypeDomain_EEC59588B50C7ED3F50141883354FCE7_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain_EEC59588B50C7ED3F50141883354FCE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Subsequent Event Type [Domain] </link:label>
<link:label id="lab_us-gaap_SubsequentEventTypeDomain_EEC59588B50C7ED3F50141883354FCE7_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain_EEC59588B50C7ED3F50141883354FCE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Event Type [Domain] </link:label>
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<link:label id="lab_us-gaap_SubsequentEventMember_63AA210A8F851E424112418833543828_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventMember_63AA210A8F851E424112418833543828" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Subsequent Event </link:label>
<link:label id="lab_us-gaap_SubsequentEventMember_63AA210A8F851E424112418833543828_label_en-US" xlink:label="lab_us-gaap_SubsequentEventMember_63AA210A8F851E424112418833543828" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Subsequent Event [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_63AA210A8F851E424112418833543828" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtWeightedAverageInterestRate_1485B31D5D684BBB1707418833556AA8_terseLabel_en-US" xlink:label="lab_us-gaap_DebtWeightedAverageInterestRate_1485B31D5D684BBB1707418833556AA8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted average interest rate </link:label>
<link:label id="lab_us-gaap_DebtWeightedAverageInterestRate_1485B31D5D684BBB1707418833556AA8_label_en-US" xlink:label="lab_us-gaap_DebtWeightedAverageInterestRate_1485B31D5D684BBB1707418833556AA8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt, Weighted Average Interest Rate </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtWeightedAverageInterestRate" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_1485B31D5D684BBB1707418833556AA8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_E3F17E79C7C40FD34FE0418833557847_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_E3F17E79C7C40FD34FE0418833557847" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Credit facility </link:label>
<link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_E3F17E79C7C40FD34FE0418833557847_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_E3F17E79C7C40FD34FE0418833557847" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Line of Credit Facility, Maximum Borrowing Capacity </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_E3F17E79C7C40FD34FE0418833557847" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredFinanceCostsGross_E356262E74127F9C2DC8418833561468_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsGross_E356262E74127F9C2DC8418833561468" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gross debt issuance costs </link:label>
<link:label id="lab_us-gaap_DeferredFinanceCostsGross_E356262E74127F9C2DC8418833561468_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsGross_E356262E74127F9C2DC8418833561468" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Issuance Costs, Gross </link:label>
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<link:label id="lab_us-gaap_AmortizationOfFinancingCosts_A775C1E06053BF365E39418833565761_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_A775C1E06053BF365E39418833565761" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt issuance costs </link:label>
<link:label id="lab_us-gaap_AmortizationOfFinancingCosts_A775C1E06053BF365E39418833565761_label_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_A775C1E06053BF365E39418833565761" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Debt Issuance Costs </link:label>
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<link:label id="lab_crl_NumberofQuarterlyInstallmentPayments_5CC37CA7E47BB043F88641883356DAB3_terseLabel_en-US" xlink:label="lab_crl_NumberofQuarterlyInstallmentPayments_5CC37CA7E47BB043F88641883356DAB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of quarterly installment payments </link:label>
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<link:label id="lab_us-gaap_RepaymentsOfLongTermDebt_5682B360ADF8B408E734418833561EDF_terseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt_5682B360ADF8B408E734418833561EDF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepayments of long-term debt </link:label>
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<link:label id="lab_us-gaap_ProceedsFromIssuanceOfDebt_8C934E7684962113277F4188335CE5D2_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfDebt_8C934E7684962113277F4188335CE5D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from private offering of debt </link:label>
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<link:label id="lab_us-gaap_DebtInstrumentFaceAmount_8B2709D233866E221A264188335CB4E9_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_8B2709D233866E221A264188335CB4E9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Aggregate principal amount </link:label>
<link:label id="lab_us-gaap_DebtInstrumentFaceAmount_8B2709D233866E221A264188335CB4E9_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_8B2709D233866E221A264188335CB4E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Face Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_8B2709D233866E221A264188335CB4E9" xlink:type="locator"/>
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<link:label id="lab_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83_terseLabel_en-US" xlink:label="lab_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum borrowing capacity, term loan and line of credit facility, potential increase available </link:label>
<link:label id="lab_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83_label_en-US" xlink:label="lab_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Maximum Borrowing Capacity, Term Loan and Line of Credit Facility, Potential Increase Available </link:label>
<link:label id="lab_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83_documentation_en-US" xlink:label="lab_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Maximum Borrowing Capacity, Term Loan and Line of Credit Facility, Potential Increase Available </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable" xlink:label="loc_crl_MaximumBorrowingCapacityTermLoanandLineofCreditFacilityPotentialIncreaseAvailable_A6C08367A7539BCB3CCA4188335C4F83" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Variable interest rate </link:label>
<link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Basis Spread on Variable Rate </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A" xlink:to="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_06DAE3BAAC6C7DF3846C4188335CB81A" xlink:type="arc"/>
<link:label id="lab_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694_terseLabel_en-US" xlink:label="lab_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of consecutive fiscal quarters </link:label>
<link:label id="lab_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694_label_en-US" xlink:label="lab_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Number of consecutive fiscal quarters </link:label>
<link:label id="lab_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694_documentation_en-US" xlink:label="lab_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Number of consecutive fiscal quarters </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_Numberofconsecutivefiscalquarters" xlink:label="loc_crl_Numberofconsecutivefiscalquarters_7627CB64B6ACB3555A4C4188335D9694" xlink:type="locator"/>
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<link:label id="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9_terseLabel_en-US" xlink:label="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Minimum EBITDA less capital expenditures to consolidated cash interest expense ratio </link:label>
<link:label id="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9_label_en-US" xlink:label="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Covenant, EBITDA Less Capital Expenditures to Consolidated Cash Interest Expense Ratio, Minimum </link:label>
<link:label id="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9_documentation_en-US" xlink:label="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Covenant, EBITDA Less Capital Expenditures to Consolidated Cash Interest Expense Ratio, Minimum </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum" xlink:label="loc_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9" xlink:to="lab_crl_DebtInstrumentCovenantEBITDALessCapitalExpenditurestoConsolidatedCashInterestExpenseRatioMinimum_6B710A82E57E045C1F484188335D0ED9" xlink:type="arc"/>
<link:label id="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D_terseLabel_en-US" xlink:label="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum consolidated indebtedness to consolidated EBITDA </link:label>
<link:label id="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D_label_en-US" xlink:label="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Covenant, Consolidated Indebtedness to Consolidated EBITDA, Maximum </link:label>
<link:label id="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D_documentation_en-US" xlink:label="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Covenant, Consolidated Indebtedness to Consolidated EBITDA, Maximum </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum" xlink:label="loc_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D" xlink:to="lab_crl_DebtInstrumentCovenantConsolidatedIndebtednesstoConsolidatedEBITDAMaximum_E62B01002ACAF924B0654188335D4B8D" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeNotionalAmount_2FD856D7431ED102D3D24188335D6130_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount_2FD856D7431ED102D3D24188335D6130" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Derivative amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNotionalAmount" xlink:label="loc_us-gaap_DerivativeNotionalAmount_2FD856D7431ED102D3D24188335D6130" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNotionalAmount_2FD856D7431ED102D3D24188335D6130" xlink:to="lab_us-gaap_DerivativeNotionalAmount_2FD856D7431ED102D3D24188335D6130" xlink:type="arc"/>
<link:label id="lab_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Foreign currency losses recognized </link:label>
<link:label id="lab_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC_label_en-US" xlink:label="lab_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1" xlink:label="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC" xlink:to="lab_us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1_BE093B2CE5FD37FFEDAE4188335DF7CC" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stated interest rate </link:label>
<link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Interest Rate, Stated Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_61BFD6E9B8F7424428A04188335E242F" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redemption price percentage </link:label>
<link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption Price, Percentage </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_A957CFCB9F76A5BA04424188335E807B" xlink:type="arc"/>
<link:label id="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B_terseLabel_en-US" xlink:label="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redemption price percentage, conditional upon equity offerings </link:label>
<link:label id="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B_label_en-US" xlink:label="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption Price, Percentage Of Principal Amount, Eligible To Be Redeemed </link:label>
<link:label id="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B_documentation_en-US" xlink:label="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption Price, Percentage Of Principal Amount, Eligible To Be Redeemed </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed" xlink:label="loc_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B" xlink:to="lab_crl_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountEligibleToBeRedeemed_44CA3A398B6E5530E2184188335EF75B" xlink:type="arc"/>
<link:label id="lab_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C_terseLabel_en-US" xlink:label="lab_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Redemption price percentage in the event of a change of control </link:label>
<link:label id="lab_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C_label_en-US" xlink:label="lab_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption Price, Percentage of Principal Amount, Change Of Control Triggering Event </link:label>
<link:label id="lab_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C_documentation_en-US" xlink:label="lab_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Redemption Price, Percentage of Principal Amount, Change Of Control Triggering Event </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent" xlink:label="loc_crl_DebtInstrumentRedemptionPricePercentageofPrincipalAmountChangeOfControlTriggeringEvent_0DB262673CDD954168714188335E9D0C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_FFCFC90671607E8580014188335E7D76_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_FFCFC90671607E8580014188335E7D76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net proceeds from debt </link:label>
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<link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_55A68042E043FE79862D1A44EE22B0DC_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_55B3248B240F54039B2E8737AAFCBF6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Acquiree [Domain] </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_55A68042E043FE79862D1A44EE22B0DC_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_55B3248B240F54039B2E8737AAFCBF6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Acquiree [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_55B3248B240F54039B2E8737AAFCBF6D" xlink:type="locator"/>
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<link:label id="lab_crl_CitoxlabMember_69459FB672CD136A5B7F1A95203054EF_terseLabel_en-US" xlink:label="lab_crl_CitoxlabMember_25F07B4D8BF450748C7FE105875863F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Citoxlab </link:label>
<link:label id="lab_crl_CitoxlabMember_69459FB672CD136A5B7F1A95203054EF_label_en-US" xlink:label="lab_crl_CitoxlabMember_25F07B4D8BF450748C7FE105875863F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Citoxlab [Member] </link:label>
<link:label id="lab_crl_CitoxlabMember_69459FB672CD136A5B7F1A95203054EF_documentation_en-US" xlink:label="lab_crl_CitoxlabMember_25F07B4D8BF450748C7FE105875863F7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Citoxlab [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_CitoxlabMember" xlink:label="loc_crl_CitoxlabMember_25F07B4D8BF450748C7FE105875863F7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_CitoxlabMember_25F07B4D8BF450748C7FE105875863F7" xlink:to="lab_crl_CitoxlabMember_25F07B4D8BF450748C7FE105875863F7" xlink:type="arc"/>
<link:label id="lab_crl_MPIResearchMember_82AAFA6F9E8B53E291641A44EE22DF1F_terseLabel_en-US" xlink:label="lab_crl_MPIResearchMember_0D814250679A5B0ABD7173B92B4CD26C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> MPI Research </link:label>
<link:label id="lab_crl_MPIResearchMember_82AAFA6F9E8B53E291641A44EE22DF1F_label_en-US" xlink:label="lab_crl_MPIResearchMember_0D814250679A5B0ABD7173B92B4CD26C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> MPI Research [Member] </link:label>
<link:label id="lab_crl_MPIResearchMember_82AAFA6F9E8B53E291641A44EE22DF1F_documentation_en-US" xlink:label="lab_crl_MPIResearchMember_0D814250679A5B0ABD7173B92B4CD26C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> MPI Research [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_MPIResearchMember" xlink:label="loc_crl_MPIResearchMember_0D814250679A5B0ABD7173B92B4CD26C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_MPIResearchMember_0D814250679A5B0ABD7173B92B4CD26C" xlink:to="lab_crl_MPIResearchMember_0D814250679A5B0ABD7173B92B4CD26C" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessAcquisitionLineItems_CF59E4BD205E9C3883C81A44EE2265D8_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems_A17BAA9F02325064BD12AC4889E5D1BA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Line Items] </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionLineItems_CF59E4BD205E9C3883C81A44EE2265D8_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems_A17BAA9F02325064BD12AC4889E5D1BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_A17BAA9F02325064BD12AC4889E5D1BA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A17BAA9F02325064BD12AC4889E5D1BA" xlink:to="lab_us-gaap_BusinessAcquisitionLineItems_A17BAA9F02325064BD12AC4889E5D1BA" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinitelivedIntangibleAssetsAcquired1_0AC5840A7A0C6F6FA0F01A44EE2384D7_terseLabel_en-US" xlink:label="lab_us-gaap_FinitelivedIntangibleAssetsAcquired1_F48AA700CCF85A57937A2BCB69AA86B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Definite-Lived Intangible Assets </link:label>
<link:label id="lab_us-gaap_FinitelivedIntangibleAssetsAcquired1_0AC5840A7A0C6F6FA0F01A44EE2384D7_label_en-US" xlink:label="lab_us-gaap_FinitelivedIntangibleAssetsAcquired1_F48AA700CCF85A57937A2BCB69AA86B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finite-lived Intangible Assets Acquired </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_F48AA700CCF85A57937A2BCB69AA86B5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_8F2F18CF5538E4A484E31A44EE239E8B_terseLabel_en-US" xlink:label="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_D7632CD40BBC542B9611ED23CD594136" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted Average Amortization Life </link:label>
<link:label id="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_8F2F18CF5538E4A484E31A44EE239E8B_label_en-US" xlink:label="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_D7632CD40BBC542B9611ED23CD594136" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Acquired Finite-lived Intangible Assets, Weighted Average Useful Life </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_D7632CD40BBC542B9611ED23CD594136" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingSegmentsMember_BDF2F7CF871C446EDB3A1A44EDE62365_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingSegmentsMember_6FC3CEA1C1E85265848240E03EB4BC93" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Total reportable segments </link:label>
<link:label id="lab_us-gaap_OperatingSegmentsMember_BDF2F7CF871C446EDB3A1A44EDE62365_label_en-US" xlink:label="lab_us-gaap_OperatingSegmentsMember_6FC3CEA1C1E85265848240E03EB4BC93" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Segments [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_6FC3CEA1C1E85265848240E03EB4BC93" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingIncomeLoss_E64683CA0039D1BC66881A44EDE6CB25_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_A413A9E33A7C5C439E659E3A57EF7E4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating income </link:label>
<link:label id="lab_us-gaap_OperatingIncomeLoss_E64683CA0039D1BC66881A44EDE6CB25_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_A413A9E33A7C5C439E659E3A57EF7E4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Income (Loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_A413A9E33A7C5C439E659E3A57EF7E4E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_BB51E4D0C9DEF2B178FF1A44EDE71F46_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_8D6F93B69E0559A1B9DA3543E56D097F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation and amortization </link:label>
<link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_BB51E4D0C9DEF2B178FF1A44EDE71F46_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_8D6F93B69E0559A1B9DA3543E56D097F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation, Depletion and Amortization </link:label>
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<link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_3BC1ADAAD0CB90D88A211A44EDE740FA_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_ADC830FB1DF75145B82D9C755861D67B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Capital expenditures </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_3BC1ADAAD0CB90D88A211A44EDE740FA_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_ADC830FB1DF75145B82D9C755861D67B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Productive Assets </link:label>
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<link:label id="lab_us-gaap_RevenueFromContractWithCustomerAbstract_B4623BA13775C5A0EAF4D2E45DD301FD_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerAbstract_F8B66225630B5C5CB053B85BB629CFE5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue from Contract with Customer [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_F8B66225630B5C5CB053B85BB629CFE5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_6A736B856828B74A5C79D2E45DD39AD6_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_8C882AEE196F51F3863A6F4E88DB0019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] </link:label>
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<link:label id="lab_crl_DiscoveryandSafetyAssessmentMember_111E3363AD7D8039E6BED2E45DD4CD77_terseLabel_en-US" xlink:label="lab_crl_DiscoveryandSafetyAssessmentMember_48F7C35EAE8F5B65B1D2D11131721F1C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> DSA </link:label>
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<link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_267DADC88B000DD82475D2E45DD4BD3D_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_14AA5D3DC2CA5145892F8838270EC25C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] </link:label>
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<link:label id="lab_crl_ContingentConsiderationMember_55BA3A1B537ECF1336B0D2E45D834DB5_terseLabel_en-US" xlink:label="lab_crl_ContingentConsiderationMember_B0E8CF9B318559CC9D5A0FE17514F800" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contingent Consideration </link:label>
<link:label id="lab_crl_ContingentConsiderationMember_55BA3A1B537ECF1336B0D2E45D834DB5_label_en-US" xlink:label="lab_crl_ContingentConsiderationMember_B0E8CF9B318559CC9D5A0FE17514F800" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contingent Consideration [Member] </link:label>
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<link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_F48BFC541104760B84B4D2E45D8387DD_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6573EC6CBE41526BBB6C6F41A1873BB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] </link:label>
<link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_F48BFC541104760B84B4D2E45D8387DD_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6573EC6CBE41526BBB6C6F41A1873BB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_6573EC6CBE41526BBB6C6F41A1873BB7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_A98CFE68989950EFDF26D2E45D8337BE_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6FAF77AF59A65F51827990F974AF89FC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] </link:label>
<link:label id="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_A98CFE68989950EFDF26D2E45D8337BE_label_en-US" xlink:label="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6FAF77AF59A65F51827990F974AF89FC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6FAF77AF59A65F51827990F974AF89FC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_A42E5D3CD1104CE1DEC51A44ED14695F_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_09176096C32351D2824EC5D9705FF1A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Expense, Tax Benefit </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_09176096C32351D2824EC5D9705FF1A3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_5A7880201737F278999B1A44ED1482C8_totalLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_E3167E64292F50138FACF64360565593" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Stock-based compensation, net of income taxes </link:label>
<link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_5A7880201737F278999B1A44ED1482C8_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_E3167E64292F50138FACF64360565593" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Expense, after Tax </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_E3167E64292F50138FACF64360565593" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_9B8DF447BBFA4379521EF8BF6FC35F46_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_9B8DF447BBFA4379521EF8BF6FC35F46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Cash Flows [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_9B8DF447BBFA4379521EF8BF6FC35F46" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_07DB3B62C19B1413E328F8BF6FC34D9F_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_07DB3B62C19B1413E328F8BF6FC34D9F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows relating to operating activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_07DB3B62C19B1413E328F8BF6FC34D9F_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_07DB3B62C19B1413E328F8BF6FC34D9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_07DB3B62C19B1413E328F8BF6FC34D9F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProfitLoss_3EA4FBE9941686BA5FF5F8BF6FC3E7E6_terseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_3EA4FBE9941686BA5FF5F8BF6FC3E7E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net income </link:label>
<link:label id="lab_us-gaap_ProfitLoss_3EA4FBE9941686BA5FF5F8BF6FC3E7E6_label_en-US" xlink:label="lab_us-gaap_ProfitLoss_3EA4FBE9941686BA5FF5F8BF6FC3E7E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_3EA4FBE9941686BA5FF5F8BF6FC3E7E6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_A1BC1B0F750F6EAC6914F8BF6FC49A9E_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_A1BC1B0F750F6EAC6914F8BF6FC49A9E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Less: Income from discontinued operations, net of income taxes </link:label>
<link:label id="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_A1BC1B0F750F6EAC6914F8BF6FC49A9E_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_A1BC1B0F750F6EAC6914F8BF6FC49A9E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_A1BC1B0F750F6EAC6914F8BF6FC49A9E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income from continuing operations, net of income taxes </link:label>
<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_07A018E6D2C7CEDB9FFDF8BF6FC4E139" xlink:type="arc"/>
<link:label id="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Adjustments to reconcile net income from continuing operations to net cash provided by operating activities: </link:label>
<link:label id="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D_label_en-US" xlink:label="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D" xlink:to="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_DC72A8EA062779915E5BF8BF6FC4162D" xlink:type="arc"/>
<link:label id="lab_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock-based compensation </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Noncash Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8" xlink:to="lab_us-gaap_ShareBasedCompensation_262BC5006F316DC39E66F8BF6FC5CED8" xlink:type="arc"/>
<link:label id="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred income taxes </link:label>
<link:label id="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Income Taxes and Tax Credits </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0" xlink:to="lab_us-gaap_DeferredIncomeTaxesAndTaxCredits_CF69F65D89DCAB7BDD8DF8BF6FC5F7A0" xlink:type="arc"/>
<link:label id="lab_us-gaap_VentureCapitalGainsLossesNet_816CD93DC99E74AB5194F8BF6FC5D3D1_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_VentureCapitalGainsLossesNet_816CD93DC99E74AB5194F8BF6FC5D3D1" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Gain on venture capital investments </link:label>
<link:label id="lab_us-gaap_VentureCapitalGainsLossesNet_816CD93DC99E74AB5194F8BF6FC5D3D1_label_en-US" xlink:label="lab_us-gaap_VentureCapitalGainsLossesNet_816CD93DC99E74AB5194F8BF6FC5D3D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Venture Capital Gain (Loss), Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VentureCapitalGainsLossesNet" xlink:label="loc_us-gaap_VentureCapitalGainsLossesNet_816CD93DC99E74AB5194F8BF6FC5D3D1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherNoncashIncomeExpense_8D7B9AE3E62AE7E5E33CF8BF6FC5F3D8_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense_8D7B9AE3E62AE7E5E33CF8BF6FC5F3D8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Other, net </link:label>
<link:label id="lab_us-gaap_OtherNoncashIncomeExpense_8D7B9AE3E62AE7E5E33CF8BF6FC5F3D8_label_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense_8D7B9AE3E62AE7E5E33CF8BF6FC5F3D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Noncash Income (Expense) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_8D7B9AE3E62AE7E5E33CF8BF6FC5F3D8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_E62D11E283DA38480E60F8BF6FC58995_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_E62D11E283DA38480E60F8BF6FC58995" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Changes in assets and liabilities: </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_E62D11E283DA38480E60F8BF6FC58995_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_E62D11E283DA38480E60F8BF6FC58995" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Operating Capital [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_E62D11E283DA38480E60F8BF6FC58995" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_7540490FA7EB06E2D855F8BF6FC6A185_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_7540490FA7EB06E2D855F8BF6FC6A185" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Trade receivables, net </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_7540490FA7EB06E2D855F8BF6FC6A185_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_7540490FA7EB06E2D855F8BF6FC6A185" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Accounts Receivable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_7540490FA7EB06E2D855F8BF6FC6A185" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInInventories_F73B6EBDF6E394C341CEF8BF6FC6C40D_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories_F73B6EBDF6E394C341CEF8BF6FC6C40D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Inventories </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInInventories_F73B6EBDF6E394C341CEF8BF6FC6C40D_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories_F73B6EBDF6E394C341CEF8BF6FC6C40D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Inventories </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_F73B6EBDF6E394C341CEF8BF6FC6C40D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_B07AAE09947274835C54F8BF6FC64A46_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_B07AAE09947274835C54F8BF6FC64A46" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts payable </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_B07AAE09947274835C54F8BF6FC64A46_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_B07AAE09947274835C54F8BF6FC64A46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Accounts Payable </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_B07AAE09947274835C54F8BF6FC64A46" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_14A21EF27D284C42F497F8BF6FC6500B_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_14A21EF27D284C42F497F8BF6FC6500B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued compensation </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_14A21EF27D284C42F497F8BF6FC6500B_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_14A21EF27D284C42F497F8BF6FC6500B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Employee Related Liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_14A21EF27D284C42F497F8BF6FC6500B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_200354AFF0F873F41F9EF8BF6FC77760_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_200354AFF0F873F41F9EF8BF6FC77760" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred revenue </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_200354AFF0F873F41F9EF8BF6FC77760_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_200354AFF0F873F41F9EF8BF6FC77760" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Contract with Customer, Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_200354AFF0F873F41F9EF8BF6FC77760" xlink:type="locator"/>
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<link:label id="lab_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E_terseLabel_en-US" xlink:label="lab_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Customer contract deposits </link:label>
<link:label id="lab_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E_label_en-US" xlink:label="lab_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) In Contract With Customer Liability, Customer Deposits </link:label>
<link:label id="lab_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E_documentation_en-US" xlink:label="lab_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) In Contract With Customer Liability, Customer Deposits </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits" xlink:label="loc_crl_IncreaseDecreaseInContractWithCustomerLiabilityCustomerDeposits_FD68B871A09CFB84A363F8BF6FC7F38E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_8233CA0B7DE343A86BA7F8BF6FC77720_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_8233CA0B7DE343A86BA7F8BF6FC77720" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Other assets and liabilities, net </link:label>
<link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_8233CA0B7DE343A86BA7F8BF6FC77720_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_8233CA0B7DE343A86BA7F8BF6FC77720" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Operating Assets and Liabilities, Net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_8233CA0B7DE343A86BA7F8BF6FC77720" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by operating activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities, Continuing Operations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_D41A590E041D911E0EA9F97DF0C31B52" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows relating to investing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_785AFE5B4F7323286868F8BF6FC72B3C" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Acquisition of businesses and assets, net of cash acquired </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Businesses, Net of Cash Acquired </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_C9887846D8CD0623767CF8BF6FC7C74B" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_00CE64D08E3CCC73073AF8BF6FC87DFB_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_00CE64D08E3CCC73073AF8BF6FC87DFB" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Capital expenditures </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_00CE64D08E3CCC73073AF8BF6FC87DFB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireProductiveAssets_00CE64D08E3CCC73073AF8BF6FC87DFB" xlink:to="lab_us-gaap_PaymentsToAcquireProductiveAssets_00CE64D08E3CCC73073AF8BF6FC87DFB" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Purchases of investments and contributions to venture capital investments </link:label>
<link:label id="lab_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Investments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A" xlink:to="lab_us-gaap_PaymentsToAcquireInvestments_6E066964DA89D3509909F8BF6FC8DE2A" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from sale of investments </link:label>
<link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Sale and Maturity of Marketable Securities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7" xlink:to="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_A55477407A956981E17DF8BF6FC823C7" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Other, net </link:label>
<link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments for (Proceeds from) Other Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E" xlink:to="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_77E1901958C7D97CF712F8BF6FC8671E" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash used in investing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_9902874E9E29C312E85CF8BF6FC8BC39" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_4B34F809114CBBD1CBCBF8BF6FC96DCB_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_4B34F809114CBBD1CBCBF8BF6FC96DCB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows relating to financing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_4B34F809114CBBD1CBCBF8BF6FC96DCB_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_4B34F809114CBBD1CBCBF8BF6FC96DCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_4B34F809114CBBD1CBCBF8BF6FC96DCB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from long-term debt and revolving credit facility </link:label>
<link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Issuance of Long-term Debt </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_765B0E88B2BF7BBEE0E3F8BF6FC9BFB6" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Proceeds from exercises of stock options </link:label>
<link:label id="lab_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D_label_en-US" xlink:label="lab_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from Stock Options Exercised </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D" xlink:to="lab_us-gaap_ProceedsFromStockOptionsExercised_D1F1D9A74E516712D453F8BF6FC9025D" xlink:type="arc"/>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Payments on long-term debt, revolving credit facility, and finance lease obligations </link:label>
<link:label id="lab_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227" xlink:to="lab_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_D3538E41558DF41D4F01F8BF6FC99227" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Payment of debt financing costs </link:label>
<link:label id="lab_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6_label_en-US" xlink:label="lab_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments of Financing Costs </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6" xlink:to="lab_us-gaap_PaymentsOfFinancingCosts_4E647105687F2D7A8F58F8BF6FC908B6" xlink:type="arc"/>
<link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Purchase of treasury stock </link:label>
<link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084_label_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments for Repurchase of Common Stock </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084" xlink:to="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_F1CB82AD9F2B2A6087AAF8BF6FCAC084" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other, net </link:label>
<link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242_label_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Proceeds from (Payments for) Other Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242" xlink:to="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_27BAB3DABD55A91766E2F8BF6FCA4242" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by financing activities </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_74FED636E3516CDBAD06F8BF6FCA1AB6" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Discontinued operations </link:label>
<link:label id="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Discontinued Operations [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908" xlink:to="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperationsAbstract_D79B5AD0100577810E33F8BF6FCA5908" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04_terseLabel_en-US" xlink:label="lab_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net cash used in operating activities from discontinued operations </link:label>
<link:label id="lab_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04_label_en-US" xlink:label="lab_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Provided by (Used in) Operating Activities, Discontinued Operations </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04" xlink:to="lab_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_38DA0B4E12E7127E7462F8BF6FCA5A04" xlink:type="arc"/>
<link:label id="lab_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0EB0A0585B974EA1882EF8BF6FCB0961_terseLabel_en-US" xlink:label="lab_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0EB0A0585B974EA1882EF8BF6FCB0961" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Effect of exchange rate changes on cash, cash equivalents, and restricted cash </link:label>
<link:label id="lab_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0EB0A0585B974EA1882EF8BF6FCB0961_label_en-US" xlink:label="lab_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0EB0A0585B974EA1882EF8BF6FCB0961" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0EB0A0585B974EA1882EF8BF6FCB0961" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4E5BDE53DAB20A360CF0F8BF6FCB5C84_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4E5BDE53DAB20A360CF0F8BF6FCB5C84" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net change in cash, cash equivalents, and restricted cash </link:label>
<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4E5BDE53DAB20A360CF0F8BF6FCB5C84_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4E5BDE53DAB20A360CF0F8BF6FCB5C84" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_4E5BDE53DAB20A360CF0F8BF6FCB5C84" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EFFA6426A094A0FAC65FF8BF6FCB84C9_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EFFA6426A094A0FAC65FF8BF6FCB84C9" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Cash, cash equivalents, and restricted cash, beginning of period </link:label>
<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EFFA6426A094A0FAC65FF8BF6FCB84C9_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EFFA6426A094A0FAC65FF8BF6FCB84C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EFFA6426A094A0FAC65FF8BF6FCB84C9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_E6B2F66BC143E36ED9F6F8BF6FCB61E2_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_E6B2F66BC143E36ED9F6F8BF6FCB61E2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Cash, cash equivalents, and restricted cash, end of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_E6B2F66BC143E36ED9F6F8BF6FCB61E2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_54A070B07419510E783AF8BF6FCB1128_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_54A070B07419510E783AF8BF6FCB1128" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Supplemental cash flow information: </link:label>
<link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_54A070B07419510E783AF8BF6FCB1128_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_54A070B07419510E783AF8BF6FCB1128" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Information [Abstract] </link:label>
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<link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A9951D98061742D67FDF8BF6FCB1AFB_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A9951D98061742D67FDF8BF6FCB1AFB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A9951D98061742D67FDF8BF6FCB1AFB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_8D622345940EBE79A9A5F8BF6FCCAE64_verboseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_8D622345940EBE79A9A5F8BF6FCCAE64" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash included in Other current assets </link:label>
<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_8D622345940EBE79A9A5F8BF6FCCAE64_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_8D622345940EBE79A9A5F8BF6FCCAE64" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash and Cash Equivalents, Current </link:label>
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<link:label id="lab_us-gaap_RestrictedCashAndInvestments_7A6D86DFAD9619C71DAEF8BF6FCCDFD4_verboseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndInvestments_7A6D86DFAD9619C71DAEF8BF6FCCDFD4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash included in Other assets </link:label>
<link:label id="lab_us-gaap_RestrictedCashAndInvestments_7A6D86DFAD9619C71DAEF8BF6FCCDFD4_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndInvestments_7A6D86DFAD9619C71DAEF8BF6FCCDFD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Cash and Investments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedCashAndInvestments" xlink:label="loc_us-gaap_RestrictedCashAndInvestments_7A6D86DFAD9619C71DAEF8BF6FCCDFD4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EF51F27AC16AFE61B788F8BF6FCC5A05_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EF51F27AC16AFE61B788F8BF6FCC5A05" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Cash, cash equivalents, and restricted cash, end of period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_EF51F27AC16AFE61B788F8BF6FCC5A05" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetIncomeLossAbstract_46B26EA5D6FFA01C6BC51AFC4D13A7BD_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAbstract_B7E5AD985F735BE89DE7C063BEF2BC6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss) Attributable to Parent [Abstract] </link:label>
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<link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_0FF3760F8D34266E9E291AFC4D142700_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_08EB9DDE107B5D79AF87811E1F594217" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Income from continuing operations, net of income taxes </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_08EB9DDE107B5D79AF87811E1F594217" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_B303FF0BBB0E9B87724F1AFC4D14F079_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_CDFE3F94DF8553A586B0651BB7640F61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income from discontinued operations, net of income taxes </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_CDFE3F94DF8553A586B0651BB7640F61" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_CDFE3F94DF8553A586B0651BB7640F61" xlink:to="lab_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_CDFE3F94DF8553A586B0651BB7640F61" xlink:type="arc"/>
<link:label id="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_DC83C467C5EF0024DAD91AFC4D140F79_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_C764A7617E415E89B55E8B9C24395889" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Less: Net income attributable to noncontrolling interests </link:label>
<link:label id="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_DC83C467C5EF0024DAD91AFC4D140F79_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_C764A7617E415E89B55E8B9C24395889" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss) Attributable to Noncontrolling Interest </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_C764A7617E415E89B55E8B9C24395889" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NetIncomeLoss_36CA8AEFADD5DDC3073A1AFC4D14B165_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_BA213FE66FB454B4943F7A7A14952104" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net income attributable to common shareholders </link:label>
<link:label id="lab_us-gaap_NetIncomeLoss_36CA8AEFADD5DDC3073A1AFC4D14B165_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_BA213FE66FB454B4943F7A7A14952104" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Income (Loss) Attributable to Parent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_BA213FE66FB454B4943F7A7A14952104" xlink:type="locator"/>
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<link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_02652C9FA078CB9DFD941AFC4D146698_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_614A08E8D9DE53A69FDAB50E5CB4B8E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Denominator: </link:label>
<link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_02652C9FA078CB9DFD941AFC4D146698_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_614A08E8D9DE53A69FDAB50E5CB4B8E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Number of Shares Outstanding Reconciliation [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_614A08E8D9DE53A69FDAB50E5CB4B8E6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_192DB6C36DFD9164BAF51AFC4D14C53A_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_587C3F137D4B5B0E95FBD976E569D75F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average shares outstanding—Basic (in shares) </link:label>
<link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_192DB6C36DFD9164BAF51AFC4D14C53A_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_587C3F137D4B5B0E95FBD976E569D75F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Number of Shares Outstanding, Basic </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_587C3F137D4B5B0E95FBD976E569D75F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DilutiveSecuritiesAbstract_7B5F404C66633DBB68611AFC4D144FF7_terseLabel_en-US" xlink:label="lab_us-gaap_DilutiveSecuritiesAbstract_891C1E71D1C45F8CA4B7C7F0D1AAB16A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Effect of dilutive securities: </link:label>
<link:label id="lab_us-gaap_DilutiveSecuritiesAbstract_7B5F404C66633DBB68611AFC4D144FF7_label_en-US" xlink:label="lab_us-gaap_DilutiveSecuritiesAbstract_891C1E71D1C45F8CA4B7C7F0D1AAB16A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DilutiveSecuritiesAbstract" xlink:label="loc_us-gaap_DilutiveSecuritiesAbstract_891C1E71D1C45F8CA4B7C7F0D1AAB16A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_9FB8947F8AE358F7FAEF1AFC4D146780_terseLabel_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A5F8868236E359518010D446EF0666AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock options, restricted stock units, performance share units and restricted stock (in shares) </link:label>
<link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_9FB8947F8AE358F7FAEF1AFC4D146780_label_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A5F8868236E359518010D446EF0666AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A5F8868236E359518010D446EF0666AA" xlink:type="locator"/>
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<link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_BCB51B736FFB91C915C61AFC4D14538B_totalLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_B8E1A07C90925024A4F1424C14D64F06" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average shares outstanding—Diluted (in shares) </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_B8E1A07C90925024A4F1424C14D64F06" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_B8E1A07C90925024A4F1424C14D64F06" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_B8E1A07C90925024A4F1424C14D64F06" xlink:type="arc"/>
<link:label id="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_585CF562E9CFA5FA4A9E1AFC4D453922_terseLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_A72A105B639155C9A62B4F55451E20BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS </link:label>
<link:label id="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_585CF562E9CFA5FA4A9E1AFC4D453922_label_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_A72A105B639155C9A62B4F55451E20BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt and Capital Leases Disclosures [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock" xlink:label="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_A72A105B639155C9A62B4F55451E20BD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_A72A105B639155C9A62B4F55451E20BD" xlink:to="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_A72A105B639155C9A62B4F55451E20BD" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value Hierarchy and NAV [Axis] </link:label>
<link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Hierarchy and NAV [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_7E6A60ADBED6E515ADD2F8BF6E59E2CA" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value, Measurements, Fair Value Hierarchy [Domain] </link:label>
<link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Hierarchy and NAV [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_B457BDF3ED6CF8A2BDB7F8BF6E5917D6" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Level 1 </link:label>
<link:label id="lab_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 1 [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A" xlink:to="lab_us-gaap_FairValueInputsLevel1Member_BCDE5380F1649366F3A7F8BF6E5A448A" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Level 2 </link:label>
<link:label id="lab_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 2 [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725" xlink:to="lab_us-gaap_FairValueInputsLevel2Member_870CC042F5176BD79528F8BF6E5A1725" xlink:type="arc"/>
<link:label id="lab_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Level 3 </link:label>
<link:label id="lab_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Inputs, Level 3 [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E" xlink:to="lab_us-gaap_FairValueInputsLevel3Member_D4ACFC1576BB590C7C0DF8BF6E5BAC8E" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash equivalents </link:label>
<link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Fair Value Disclosure </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A" xlink:to="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_B30E10BA8E18207028CDF8BF6E5BFB0A" xlink:type="arc"/>
<link:label id="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2_terseLabel_en-US" xlink:label="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other assets: </link:label>
<link:label id="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2_label_en-US" xlink:label="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Fair Value Disclosure [Abstract] </link:label>
<link:label id="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2_documentation_en-US" xlink:label="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other Assets, Fair Value Disclosure [Abstract] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_OtherAssetsFairValueDisclosureAbstract" xlink:label="loc_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2" xlink:to="lab_crl_OtherAssetsFairValueDisclosureAbstract_AF25D2AC69C68AAAD91CF8BF6E5B97A2" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Foreign currency forward contract </link:label>
<link:label id="lab_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5_label_en-US" xlink:label="lab_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Asset </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5" xlink:to="lab_us-gaap_DerivativeAssets_49BA19D6A64675985842F913A3997EC5" xlink:type="arc"/>
<link:label id="lab_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D_terseLabel_en-US" xlink:label="lab_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Life insurance policies </link:label>
<link:label id="lab_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D_label_en-US" xlink:label="lab_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Surrender Value, Fair Value Disclosure </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashSurrenderValueFairValueDisclosure" xlink:label="loc_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D" xlink:to="lab_us-gaap_CashSurrenderValueFairValueDisclosure_7FCEC952E1770B27F56EF8BF6E5B109D" xlink:type="arc"/>
<link:label id="lab_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total assets measured at fair value </link:label>
<link:label id="lab_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7_label_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Fair Value Disclosure </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7" xlink:to="lab_us-gaap_AssetsFairValueDisclosure_D213D4038364C49BBBDCF8BF6E5CF4D7" xlink:type="arc"/>
<link:label id="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE_terseLabel_en-US" xlink:label="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other current liabilities measured at fair value: </link:label>
<link:label id="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE_label_en-US" xlink:label="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Current, Fair Value Disclosure [Abstract] </link:label>
<link:label id="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE_documentation_en-US" xlink:label="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Current, Fair Value Disclosure [Abstract] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract" xlink:label="loc_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE" xlink:to="lab_crl_OtherLiabilitiesCurrentFairValueDisclosureAbstract_48B15F7D46BB3D39AFD3F8BF6E5CE0AE" xlink:type="arc"/>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contingent consideration </link:label>
<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Contingent Consideration, Liability, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249" xlink:to="lab_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_FB5C3ACFC2A7EC35A14EF8BF6E5C9249" xlink:type="arc"/>
<link:label id="lab_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Foreign currency forward contract </link:label>
<link:label id="lab_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Derivative Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1" xlink:to="lab_us-gaap_DerivativeLiabilities_2C117C54A63BFB6F6AE3F8BF6E5DB8B1" xlink:type="arc"/>
<link:label id="lab_us-gaap_LiabilitiesFairValueDisclosure_425CD653838F455921A4F8BF6E5D3372_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesFairValueDisclosure_425CD653838F455921A4F8BF6E5D3372" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities measured at fair value </link:label>
<link:label id="lab_us-gaap_LiabilitiesFairValueDisclosure_425CD653838F455921A4F8BF6E5D3372_label_en-US" xlink:label="lab_us-gaap_LiabilitiesFairValueDisclosure_425CD653838F455921A4F8BF6E5D3372" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Financial and Nonfinancial Liabilities, Fair Value Disclosure </link:label>
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<link:label id="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_632D0B9ECC5B7C1E0842AF6E2F6B5137_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_632D0B9ECC5B7C1E0842AF6E2F6B5137" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Client Receivables, Contract Assets and Contract Liabilities </link:label>
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<link:label id="lab_crl_InvestmentsinLimitedPartnershipsTextBlock_ABFF141B7F77613393351A44EDB38206_terseLabel_en-US" xlink:label="lab_crl_InvestmentsinLimitedPartnershipsTextBlock_4DA1E490F38951C28E59691868E50632" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> VENTURE CAPITAL AND OTHER INVESTMENTS </link:label>
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<link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_446F883A85BCEA198295D2E45D1580A4_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_203F7DA580ED57028DC3408D1478EF5E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] </link:label>
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<link:label id="lab_us-gaap_EmployeeStockOptionMember_A8CF50C7A9E5E987CDF6D2E45D16106E_verboseLabel_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember_C3A55DEE284A5FEB90731C36EF1B2446" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Stock Options </link:label>
<link:label id="lab_us-gaap_EmployeeStockOptionMember_A8CF50C7A9E5E987CDF6D2E45D16106E_label_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember_C3A55DEE284A5FEB90731C36EF1B2446" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Option [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_C3A55DEE284A5FEB90731C36EF1B2446" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestrictedStockUnitsRSUMember_490BB8CD0AAAB4A1FE42D2E45D178470_label_en-US" xlink:label="lab_us-gaap_RestrictedStockUnitsRSUMember_E601CB1AE8315383B8676405FF32950E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Stock Units (RSUs) [Member] </link:label>
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<link:label id="lab_us-gaap_PerformanceSharesMember_4F67C4DAE5A6A51790E5D2E45D17C266_terseLabel_en-US" xlink:label="lab_us-gaap_PerformanceSharesMember_0D1988B181AF5A4EAE9E866ED0754DFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Performance Stock Units </link:label>
<link:label id="lab_us-gaap_PerformanceSharesMember_4F67C4DAE5A6A51790E5D2E45D17C266_label_en-US" xlink:label="lab_us-gaap_PerformanceSharesMember_0D1988B181AF5A4EAE9E866ED0754DFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Performance Shares [Member] </link:label>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7BE9A7F64A57AA5D63EDD2E45D174705_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_E8269AD88A9351408070B167FD5F676F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award [Line Items] </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7BE9A7F64A57AA5D63EDD2E45D174705_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_E8269AD88A9351408070B167FD5F676F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_E8269AD88A9351408070B167FD5F676F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_98C96ABB6D40FA80D603D2E45D17E360_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_C9C70DEAA19053B497B51583397489CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock options granted (in shares) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_98C96ABB6D40FA80D603D2E45D17E360_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_C9C70DEAA19053B497B51583397489CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_C9C70DEAA19053B497B51583397489CB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_73C732A3CF64B11599D8D2E45D17F4FC_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_B89A543E1BFB5FB5AE5E5EBDC0A1678F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stock options weighted average grant date fair value (in dollars per share) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_73C732A3CF64B11599D8D2E45D17F4FC_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_B89A543E1BFB5FB5AE5E5EBDC0A1678F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value </link:label>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1E7532E63F41BBEFB34ED2E45D1790C7_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_81A38C4F539E5F1385BDB3E90B88CD49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Shares granted (in shares) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1E7532E63F41BBEFB34ED2E45D1790C7_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_81A38C4F539E5F1385BDB3E90B88CD49" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_81A38C4F539E5F1385BDB3E90B88CD49" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_1BAD448AE25EBAC515CCD2E45D18A7D4_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_17A733A7E2325C6882EA976900A13C71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average grant date fair value (in dollars per share) </link:label>
<link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_1BAD448AE25EBAC515CCD2E45D18A7D4_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_17A733A7E2325C6882EA976900A13C71" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value </link:label>
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<link:label id="lab_crl_MaxPsuShares_B15188385B128C0364B5D2E45D187AA0_terseLabel_en-US" xlink:label="lab_crl_MaxPsuShares_81FA999B698B520AB98DB26823167598" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Maximum shares to be awarded under plan (in shares) </link:label>
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<link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2ED8239A229BE6BABF11D2E45DC97DC3_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_4F595F2FDA5D540A94E9305F91BA805B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Revenue and Other Financial Information by Business Segment </link:label>
<link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2ED8239A229BE6BABF11D2E45DC97DC3_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_4F595F2FDA5D540A94E9305F91BA805B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment [Table Text Block] </link:label>
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<link:label id="lab_crl_ScheduleOfUnallocatedCorporateOverheadTableTextBlock_D369357B75A807C44A0CD2E45DC97F7E_terseLabel_en-US" xlink:label="lab_crl_ScheduleOfUnallocatedCorporateOverheadTableTextBlock_A3CEA06190155893851734EA741F2A27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Summary of Unallocated Corporate Overhead </link:label>
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<link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_D901204AC461E7F59148F8BF6E72A427_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain_D901204AC461E7F59148F8BF6E72A427" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Measurement [Domain] </link:label>
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<link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_A0591D9FB6696022457EF8BF6E7227B3_terseLabel_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_A0591D9FB6696022457EF8BF6E7227B3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Portion at Fair Value Measurement </link:label>
<link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_A0591D9FB6696022457EF8BF6E7227B3_label_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_A0591D9FB6696022457EF8BF6E7227B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Portion at Fair Value Measurement [Member] </link:label>
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<link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_991716FFAA33F9146E8BF8BF6E7225A5_terseLabel_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_991716FFAA33F9146E8BF8BF6E7225A5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Book Value </link:label>
<link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_991716FFAA33F9146E8BF8BF6E7225A5_label_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_991716FFAA33F9146E8BF8BF6E7225A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Reported Value Measurement [Member] </link:label>
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<link:label id="lab_us-gaap_IncomeTaxDisclosureAbstract_252563C5194E21E3111736CD0D2F2179_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract_252563C5194E21E3111736CD0D2F2179" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Disclosure [Abstract] </link:label>
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<link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_7266012AF1F27EAFF6C1F8BF6B71008F_negatedLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_7266012AF1F27EAFF6C1F8BF6B71008F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Derecognition of leased properties recorded in property, plant and equipment </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_7266012AF1F27EAFF6C1F8BF6B71008F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_7266012AF1F27EAFF6C1F8BF6B71008F" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_7266012AF1F27EAFF6C1F8BF6B71008F" xlink:type="arc"/>
<link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_D478ACC2EB62FAF6DD36F8BF6B714563_negatedLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_D478ACC2EB62FAF6DD36F8BF6B714563" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Derecognition of other debt associated with leased properties </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_D478ACC2EB62FAF6DD36F8BF6B714563" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_D478ACC2EB62FAF6DD36F8BF6B714563" xlink:to="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_D478ACC2EB62FAF6DD36F8BF6B714563" xlink:type="arc"/>
<link:label id="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7_terseLabel_en-US" xlink:label="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease renewal term </link:label>
<link:label id="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7_label_en-US" xlink:label="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Renewal Term </link:label>
<link:label id="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7_documentation_en-US" xlink:label="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Renewal Term </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_LesseeRenewalTerm" xlink:label="loc_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7" xlink:to="lab_crl_LesseeRenewalTerm_8C3231AE0CD0D263E4D2F8BF6B725CE7" xlink:type="arc"/>
<link:label id="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378_terseLabel_en-US" xlink:label="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Future minimum lease payments for leases that have not yet commenced </link:label>
<link:label id="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378_label_en-US" xlink:label="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Lease Not Yet Commenced, Undiscounted Amount </link:label>
<link:label id="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378_documentation_en-US" xlink:label="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Lease Not Yet Commenced, Undiscounted Amount </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount" xlink:label="loc_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378" xlink:to="lab_crl_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount_FD9A42EB40637DDDD822F8BF6B721378" xlink:type="arc"/>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Terms for leases that have not yet commenced </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:label="loc_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB" xlink:to="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_B02A4392BA5277FB319CF8BF6B723DAB" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, Initial Application Period Cumulative Effect Transition [Table] </link:label>
<link:label id="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC_label_en-US" xlink:label="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Initial Application Period Cumulative Effect Transition [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable" xlink:label="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC" xlink:to="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_9993B94C126511AFAD3036CD0DB4A9BC" xlink:type="arc"/>
<link:label id="lab_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB_terseLabel_en-US" xlink:label="lab_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:label id="lab_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB_label_en-US" xlink:label="lab_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB" xlink:to="lab_srt_StatementGeographicalAxis_B9BC2D7EC55A5FB0574136CD0DB490CB" xlink:type="arc"/>
<link:label id="lab_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC_terseLabel_en-US" xlink:label="lab_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Geographical [Domain] </link:label>
<link:label id="lab_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC_label_en-US" xlink:label="lab_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Geographical [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC" xlink:to="lab_srt_SegmentGeographicalDomain_ED7A4A51319AFDC2DE8436CD0DB4CBEC" xlink:type="arc"/>
<link:label id="lab_country_US_1210166362973514585C36CD0DB5B0B6_terseLabel_en-US" xlink:label="lab_country_US_1210166362973514585C36CD0DB5B0B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> U.S. </link:label>
<link:label id="lab_country_US_1210166362973514585C36CD0DB5B0B6_label_en-US" xlink:label="lab_country_US_1210166362973514585C36CD0DB5B0B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> UNITED STATES </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_1210166362973514585C36CD0DB5B0B6" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_US_1210166362973514585C36CD0DB5B0B6" xlink:to="lab_country_US_1210166362973514585C36CD0DB5B0B6" xlink:type="arc"/>
<link:label id="lab_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF_terseLabel_en-US" xlink:label="lab_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Europe </link:label>
<link:label id="lab_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF_label_en-US" xlink:label="lab_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Europe [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EuropeMember" xlink:label="loc_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF" xlink:to="lab_srt_EuropeMember_E5A23344A43E7926489536CD0DB54FBF" xlink:type="arc"/>
<link:label id="lab_country_CA_151637BD2FC269EE6C5936CD0DB57E75_terseLabel_en-US" xlink:label="lab_country_CA_151637BD2FC269EE6C5936CD0DB57E75" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Canada </link:label>
<link:label id="lab_country_CA_151637BD2FC269EE6C5936CD0DB57E75_label_en-US" xlink:label="lab_country_CA_151637BD2FC269EE6C5936CD0DB57E75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> CANADA </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_CA" xlink:label="loc_country_CA_151637BD2FC269EE6C5936CD0DB57E75" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_CA_151637BD2FC269EE6C5936CD0DB57E75" xlink:to="lab_country_CA_151637BD2FC269EE6C5936CD0DB57E75" xlink:type="arc"/>
<link:label id="lab_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B_terseLabel_en-US" xlink:label="lab_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asia Pacific </link:label>
<link:label id="lab_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B_label_en-US" xlink:label="lab_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asia Pacific [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AsiaPacificMember" xlink:label="loc_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B" xlink:to="lab_srt_AsiaPacificMember_CDA547CB9FBB5639B28136CD0DB5883B" xlink:type="arc"/>
<link:label id="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932_terseLabel_en-US" xlink:label="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932_label_en-US" xlink:label="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other [Member] </link:label>
<link:label id="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932_documentation_en-US" xlink:label="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_OtherMember" xlink:label="loc_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932" xlink:to="lab_crl_OtherMember_4FDCF1D76EAE152DB0C536CD0DB52932" xlink:type="arc"/>
<link:label id="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_BF92F4BAA34591B837B136CD0DB6C17E_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_BF92F4BAA34591B837B136CD0DB6C17E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue, Initial Application Period Cumulative Effect Transition [Line Items] </link:label>
<link:label id="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_BF92F4BAA34591B837B136CD0DB6C17E_label_en-US" xlink:label="lab_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_BF92F4BAA34591B837B136CD0DB6C17E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenue, Initial Application Period Cumulative Effect Transition [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems" xlink:label="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_BF92F4BAA34591B837B136CD0DB6C17E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfGoodwillTextBlock_56D18F941D74DA261867D2E45C34628A_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTextBlock_76E290D3C5A355B7A1E0F296BBD886DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rollforward of Goodwill </link:label>
<link:label id="lab_us-gaap_ScheduleOfGoodwillTextBlock_56D18F941D74DA261867D2E45C34628A_label_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTextBlock_76E290D3C5A355B7A1E0F296BBD886DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Goodwill [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock" xlink:label="loc_us-gaap_ScheduleOfGoodwillTextBlock_76E290D3C5A355B7A1E0F296BBD886DB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_406A4C12D2C8418F7E78D2E45C35BEA8_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_9A85C77390FE5A7DA26CBC83495E9C5F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Intangible Assets </link:label>
<link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_406A4C12D2C8418F7E78D2E45C35BEA8_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_9A85C77390FE5A7DA26CBC83495E9C5F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets [Table Text Block] </link:label>
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<link:label id="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_6EE7B9349ECA7717FB221A44EE1C7890_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_AAF684F443115837BBADA54984C78D57" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenue </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_6EE7B9349ECA7717FB221A44EE1C7890_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_AAF684F443115837BBADA54984C78D57" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Pro Forma Revenue </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_AAF684F443115837BBADA54984C78D57" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_78C3FE1B25DC6D9A76AF1A44EE1D3841_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_0E08A91F5AE25DF0B3F488694C37AC7F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net income attributable to common shareholders </link:label>
<link:label id="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_78C3FE1B25DC6D9A76AF1A44EE1D3841_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_0E08A91F5AE25DF0B3F488694C37AC7F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Acquisition, Pro Forma Net Income (Loss) </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_0E08A91F5AE25DF0B3F488694C37AC7F" xlink:type="locator"/>
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<link:label id="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE_terseLabel_en-US" xlink:label="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Client receivables </link:label>
<link:label id="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE_label_en-US" xlink:label="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Trade Receivables from Customers </link:label>
<link:label id="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE_documentation_en-US" xlink:label="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for billed goods or services. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_TradeReceivablesFromCustomers" xlink:label="loc_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE" xlink:to="lab_crl_TradeReceivablesFromCustomers_49D1DDAD436114C83867B6D4BDA87FDE" xlink:type="arc"/>
<link:label id="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contract assets (unbilled revenue) </link:label>
<link:label id="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract with Customer, Asset, Gross, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerAssetGrossCurrent" xlink:label="loc_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4" xlink:to="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A2AD6A1D2E45AB0AC5A4B6D4BDA934C4" xlink:type="arc"/>
<link:label id="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682_terseLabel_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contract liabilities (current and long-term deferred revenue) </link:label>
<link:label id="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682_label_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract With Customer Liability, Deferred Revenue </link:label>
<link:label id="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682_documentation_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Contract With Customer Liability, Deferred Revenue </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ContractWithCustomerLiabilityDeferredRevenue" xlink:label="loc_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682" xlink:to="lab_crl_ContractWithCustomerLiabilityDeferredRevenue_09A901E80F5299FB9988B6D4BDA95682" xlink:type="arc"/>
<link:label id="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01_terseLabel_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contract liabilities (customer contract deposits) </link:label>
<link:label id="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01_label_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contract With Customer Liability, Customer Deposits </link:label>
<link:label id="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01_documentation_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Contract With Customer Liability, Customer Deposits </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ContractWithCustomerLiabilityCustomerDeposits" xlink:label="loc_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01" xlink:to="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_35B01E0EAF8A130AD2CEB6D4BDA93D01" xlink:type="arc"/>
<link:label id="lab_crl_AssetImpairmentsAndAcceleratedDepreciationMember_EF5D7EA1BEDDB63547101A44EC9A690F_terseLabel_en-US" xlink:label="lab_crl_AssetImpairmentsAndAcceleratedDepreciationMember_CD0D3E237C1C52ACB1E320F868290C22" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset Impairments and Accelerated Depreciation </link:label>
<link:label id="lab_crl_AssetImpairmentsAndAcceleratedDepreciationMember_EF5D7EA1BEDDB63547101A44EC9A690F_label_en-US" xlink:label="lab_crl_AssetImpairmentsAndAcceleratedDepreciationMember_CD0D3E237C1C52ACB1E320F868290C22" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Impairments And Accelerated Depreciation [Member] </link:label>
<link:label id="lab_crl_AssetImpairmentsAndAcceleratedDepreciationMember_EF5D7EA1BEDDB63547101A44EC9A690F_documentation_en-US" xlink:label="lab_crl_AssetImpairmentsAndAcceleratedDepreciationMember_CD0D3E237C1C52ACB1E320F868290C22" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Asset Impairments And Accelerated Depreciation [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_AssetImpairmentsAndAcceleratedDepreciationMember" xlink:label="loc_crl_AssetImpairmentsAndAcceleratedDepreciationMember_CD0D3E237C1C52ACB1E320F868290C22" xlink:type="locator"/>
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<link:label id="lab_crl_AccruedCompensationMember_8EBEB12FE5AABD2594371A44EC9C134A_terseLabel_en-US" xlink:label="lab_crl_AccruedCompensationMember_C592885928F6582AB5C463ACFD639E6F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued Compensation </link:label>
<link:label id="lab_crl_AccruedCompensationMember_8EBEB12FE5AABD2594371A44EC9C134A_label_en-US" xlink:label="lab_crl_AccruedCompensationMember_C592885928F6582AB5C463ACFD639E6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Compensation [Member] </link:label>
<link:label id="lab_crl_AccruedCompensationMember_8EBEB12FE5AABD2594371A44EC9C134A_documentation_en-US" xlink:label="lab_crl_AccruedCompensationMember_C592885928F6582AB5C463ACFD639E6F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Accrued Compensation [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_AccruedCompensationMember" xlink:label="loc_crl_AccruedCompensationMember_C592885928F6582AB5C463ACFD639E6F" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_AccruedCompensationMember_C592885928F6582AB5C463ACFD639E6F" xlink:to="lab_crl_AccruedCompensationMember_C592885928F6582AB5C463ACFD639E6F" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherNoncurrentLiabilitiesMember_6F9D3A0CB9A8FEF148191A44EC9C8AB3_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNoncurrentLiabilitiesMember_626E840EF12F5E6085EA92E117A5B51C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Noncurrent Liabilities </link:label>
<link:label id="lab_us-gaap_OtherNoncurrentLiabilitiesMember_6F9D3A0CB9A8FEF148191A44EC9C8AB3_label_en-US" xlink:label="lab_us-gaap_OtherNoncurrentLiabilitiesMember_626E840EF12F5E6085EA92E117A5B51C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Noncurrent Liabilities [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncurrentLiabilitiesMember" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_626E840EF12F5E6085EA92E117A5B51C" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoncurrentLiabilitiesMember_626E840EF12F5E6085EA92E117A5B51C" xlink:to="lab_us-gaap_OtherNoncurrentLiabilitiesMember_626E840EF12F5E6085EA92E117A5B51C" xlink:type="arc"/>
<link:label id="lab_us-gaap_RestructuringReserve_6ED416C9213CBB4C75001A44EC9D8454_terseLabel_en-US" xlink:label="lab_us-gaap_RestructuringReserve_102002FE9DDA58BEA6AB9D1BB246104E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Severance and other personnel related costs liability and lease obligation liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_102002FE9DDA58BEA6AB9D1BB246104E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestructuringReserve_102002FE9DDA58BEA6AB9D1BB246104E" xlink:to="lab_us-gaap_RestructuringReserve_102002FE9DDA58BEA6AB9D1BB246104E" xlink:type="arc"/>
<link:label id="lab_crl_CashFlowLesseeAbstract_3CB3B8498AAFDBB43969D2E45EB07419_terseLabel_en-US" xlink:label="lab_crl_CashFlowLesseeAbstract_00A1053191225B60AB5126E96B34C3CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows included in the measurement of lease liabilities: </link:label>
<link:label id="lab_crl_CashFlowLesseeAbstract_3CB3B8498AAFDBB43969D2E45EB07419_label_en-US" xlink:label="lab_crl_CashFlowLesseeAbstract_00A1053191225B60AB5126E96B34C3CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Flow, Lessee [Abstract] </link:label>
<link:label id="lab_crl_CashFlowLesseeAbstract_3CB3B8498AAFDBB43969D2E45EB07419_documentation_en-US" xlink:label="lab_crl_CashFlowLesseeAbstract_00A1053191225B60AB5126E96B34C3CA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Cash Flow, Lessee [Abstract] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_CashFlowLesseeAbstract" xlink:label="loc_crl_CashFlowLesseeAbstract_00A1053191225B60AB5126E96B34C3CA" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_CashFlowLesseeAbstract_00A1053191225B60AB5126E96B34C3CA" xlink:to="lab_crl_CashFlowLesseeAbstract_00A1053191225B60AB5126E96B34C3CA" xlink:type="arc"/>
<link:label id="lab_us-gaap_OperatingLeasePayments_D7872388C9ACD4384C6FD2E45EB0571F_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_06BEB09521F153139DE125B38FC2FADE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating cash flows from operating leases </link:label>
<link:label id="lab_us-gaap_OperatingLeasePayments_D7872388C9ACD4384C6FD2E45EB0571F_label_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_06BEB09521F153139DE125B38FC2FADE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Payments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasePayments" xlink:label="loc_us-gaap_OperatingLeasePayments_06BEB09521F153139DE125B38FC2FADE" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasePayments_06BEB09521F153139DE125B38FC2FADE" xlink:to="lab_us-gaap_OperatingLeasePayments_06BEB09521F153139DE125B38FC2FADE" xlink:type="arc"/>
<link:label id="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_C19CD5316D99C937ECE5D2E45EB0BAD8_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_A5E10F72050E59B69896871996EE06EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating cash flows from finance leases </link:label>
<link:label id="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_C19CD5316D99C937ECE5D2E45EB0BAD8_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_A5E10F72050E59B69896871996EE06EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Interest Payment on Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:label="loc_us-gaap_FinanceLeaseInterestPaymentOnLiability_A5E10F72050E59B69896871996EE06EF" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeasePrincipalPayments_D3693564571726B86A92D2E45EB17583_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeasePrincipalPayments_97970ADD79615348BB19F133C4D4CD0C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finance cash flows from finance leases </link:label>
<link:label id="lab_us-gaap_FinanceLeasePrincipalPayments_D3693564571726B86A92D2E45EB17583_label_en-US" xlink:label="lab_us-gaap_FinanceLeasePrincipalPayments_97970ADD79615348BB19F133C4D4CD0C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Principal Payments </link:label>
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<link:label id="lab_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_7C61FAF0F79C9E15B25CD2E45EB1B1C0_terseLabel_en-US" xlink:label="lab_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_CC02FC28B0E055F5B3671583E398A805" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Non-cash leases activity: </link:label>
<link:label id="lab_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_7C61FAF0F79C9E15B25CD2E45EB1B1C0_label_en-US" xlink:label="lab_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_CC02FC28B0E055F5B3671583E398A805" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] </link:label>
<link:label id="lab_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_7C61FAF0F79C9E15B25CD2E45EB1B1C0_documentation_en-US" xlink:label="lab_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_CC02FC28B0E055F5B3671583E398A805" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:label="loc_crl_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_CC02FC28B0E055F5B3671583E398A805" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_FE643B3D0D322AB3766ED2E45EB1E95F_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0E0B2FE1422B5398AE25C699F20FB0E6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Right-of-use lease assets obtained in exchange for new operating lease liabilities </link:label>
<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_FE643B3D0D322AB3766ED2E45EB1E95F_label_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0E0B2FE1422B5398AE25C699F20FB0E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-of-Use Asset Obtained in Exchange for Operating Lease Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_0E0B2FE1422B5398AE25C699F20FB0E6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_DC6715C96198A1D97F0AD2E45EB1311B_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_EFC2BFFC36E55E2AA15EC3E6BABF3108" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Right-of-use lease assets obtained in exchange for new finance lease liabilities </link:label>
<link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_DC6715C96198A1D97F0AD2E45EB1311B_label_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_EFC2BFFC36E55E2AA15EC3E6BABF3108" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-of-Use Asset Obtained in Exchange for Finance Lease Liability </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_EFC2BFFC36E55E2AA15EC3E6BABF3108" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_EFC2BFFC36E55E2AA15EC3E6BABF3108" xlink:to="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_EFC2BFFC36E55E2AA15EC3E6BABF3108" xlink:type="arc"/>
<link:label id="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_9999DC4C97F60DA63C4E1A44ED1DB1BE_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_8116F65569F8505E8580787BAA6C60BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Defined Benefit Plans Disclosures [Table] </link:label>
<link:label id="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_9999DC4C97F60DA63C4E1A44ED1DB1BE_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_8116F65569F8505E8580787BAA6C60BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Defined Benefit Plans Disclosures [Table] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_8116F65569F8505E8580787BAA6C60BD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RetirementPlanTypeAxis_AD9A7C4800581CFCF29E1A44ED1DD81D_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeAxis_78A6B05551CD59D580A6757760EF0380" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Retirement Plan Type [Axis] </link:label>
<link:label id="lab_us-gaap_RetirementPlanTypeAxis_AD9A7C4800581CFCF29E1A44ED1DD81D_label_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeAxis_78A6B05551CD59D580A6757760EF0380" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retirement Plan Type [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeAxis" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_78A6B05551CD59D580A6757760EF0380" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RetirementPlanTypeDomain_034117BC0144EC5E37D71A44ED1EBCFF_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeDomain_FB527E8B8D0C5007989DECA180020783" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Retirement Plan Type [Domain] </link:label>
<link:label id="lab_us-gaap_RetirementPlanTypeDomain_034117BC0144EC5E37D71A44ED1EBCFF_label_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeDomain_FB527E8B8D0C5007989DECA180020783" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retirement Plan Type [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_FB527E8B8D0C5007989DECA180020783" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PensionPlansDefinedBenefitMember_CC3BFE8C7806B37469FD1A44ED1E818E_verboseLabel_en-US" xlink:label="lab_us-gaap_PensionPlansDefinedBenefitMember_59FEDD7E374452CC8A8D0C3EFF2023A4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Pension </link:label>
<link:label id="lab_us-gaap_PensionPlansDefinedBenefitMember_CC3BFE8C7806B37469FD1A44ED1E818E_label_en-US" xlink:label="lab_us-gaap_PensionPlansDefinedBenefitMember_59FEDD7E374452CC8A8D0C3EFF2023A4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Pension Plan [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_59FEDD7E374452CC8A8D0C3EFF2023A4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionPlansDefinedBenefitMember_59FEDD7E374452CC8A8D0C3EFF2023A4" xlink:to="lab_us-gaap_PensionPlansDefinedBenefitMember_59FEDD7E374452CC8A8D0C3EFF2023A4" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_5C8961CBD126553E18F81A44ED1EA93B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_86526E3454005B6EBB2FBFC9334EBA7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Postretirement Benefits Plan </link:label>
<link:label id="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_5C8961CBD126553E18F81A44ED1EA93B_label_en-US" xlink:label="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_86526E3454005B6EBB2FBFC9334EBA7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Postretirement Benefits Plan [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_86526E3454005B6EBB2FBFC9334EBA7B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_86526E3454005B6EBB2FBFC9334EBA7B" xlink:to="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_86526E3454005B6EBB2FBFC9334EBA7B" xlink:type="arc"/>
<link:label id="lab_us-gaap_DefinedBenefitPlanDisclosureLineItems_18372F90C6433C2DE42C1A44ED1E9E25_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanDisclosureLineItems_4465AD3B40045024AC7FC1D063398AD3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Employee benefits </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanDisclosureLineItems_18372F90C6433C2DE42C1A44ED1E9E25_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanDisclosureLineItems_4465AD3B40045024AC7FC1D063398AD3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan Disclosure [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_4465AD3B40045024AC7FC1D063398AD3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_BF473A8E0DAF6B41B6C21A44ED1F03F1_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost_7252B394C018576C8C23396011CC37AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Service cost </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_BF473A8E0DAF6B41B6C21A44ED1F03F1_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost_7252B394C018576C8C23396011CC37AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Service Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_7252B394C018576C8C23396011CC37AD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanInterestCost_4EAB4A3E55498F7739D01A44ED1F302E_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanInterestCost_1CA5B405CF425E77AB1840BD28BAF14D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest cost </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanInterestCost_4EAB4A3E55498F7739D01A44ED1F302E_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanInterestCost_1CA5B405CF425E77AB1840BD28BAF14D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Interest Cost </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_1CA5B405CF425E77AB1840BD28BAF14D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_EEE923F1B077E4B9A8141A44ED1F8188_negatedLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_F87F537812225894ABE300BFF89DBA85" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Expected return on plan assets </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_EEE923F1B077E4B9A8141A44ED1F8188_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_F87F537812225894ABE300BFF89DBA85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Defined Benefit Plan, Expected Return (Loss) on Plan Assets </link:label>
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<link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_8E7B89A18BD10581085F1A44ED1F17B8_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_79E12C0B75865AB8BFA0286E517AAAF3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of prior service cost (credit) </link:label>
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<link:label id="lab_crl_ContractWithCustomerAssetPercentageOfAmountReclassifiedtoReceivable_13D2B17ABDBEFED81CF61A44EDFF5D49_documentation_en-US" xlink:label="lab_crl_ContractWithCustomerAssetPercentageOfAmountReclassifiedtoReceivable_E84184C55F66593F8EB535A911374C38" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Contract With Customer, Asset, Percentage Of Amount Reclassified to Receivable </link:label>
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<link:label id="lab_crl_KWSBioTestLimitedMember_1028E7F9DE1370B1D56736CD0DFD4925_terseLabel_en-US" xlink:label="lab_crl_KWSBioTestLimitedMember_1028E7F9DE1370B1D56736CD0DFD4925" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> KWS BioTest Limited </link:label>
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<link:label id="lab_crl_OtherAcquisitionsMember_131060716C8D498F47FB36CD0DFD135B_terseLabel_en-US" xlink:label="lab_crl_OtherAcquisitionsMember_131060716C8D498F47FB36CD0DFD135B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Acquisitions </link:label>
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<link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_A7F83CB1AA51ACFEF78836CD0DFDCC34_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_A7F83CB1AA51ACFEF78836CD0DFDCC34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Trade receivables, contractual amount </link:label>
<link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_A7F83CB1AA51ACFEF78836CD0DFDCC34_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_A7F83CB1AA51ACFEF78836CD0DFDCC34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Acquired Receivables, Gross Contractual Amount </link:label>
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<link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_7EB9FCB5B00735AF049CD2E45BD23FE9_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare_5F5EBCD773285137AF3AB475F37D320D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Preferred stock, par value (in dollars per share) </link:label>
<link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_7EB9FCB5B00735AF049CD2E45BD23FE9_label_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare_5F5EBCD773285137AF3AB475F37D320D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Par or Stated Value Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_5F5EBCD773285137AF3AB475F37D320D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockSharesAuthorized_2804A3504BA98E88C6B8D2E45BD22E5E_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized_27A0A6FE20C553DAB2683D425F8B56F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Preferred stock, shares authorized (in shares) </link:label>
<link:label id="lab_us-gaap_PreferredStockSharesAuthorized_2804A3504BA98E88C6B8D2E45BD22E5E_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized_27A0A6FE20C553DAB2683D425F8B56F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Shares Authorized </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_27A0A6FE20C553DAB2683D425F8B56F1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockSharesIssued_73B189193D835F1A5920D2E45BD31E69_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued_47E3C7D64A0F59C1A33EB276117152C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Preferred stock, shares issued (in shares) </link:label>
<link:label id="lab_us-gaap_PreferredStockSharesIssued_73B189193D835F1A5920D2E45BD31E69_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued_47E3C7D64A0F59C1A33EB276117152C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Shares Issued </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_47E3C7D64A0F59C1A33EB276117152C4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PreferredStockSharesOutstanding_F9781E9B1B77D92D7108D2E45BD34596_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding_0E7D942C179252DE901A0B012EF19469" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Preferred stock, shares outstanding (in shares) </link:label>
<link:label id="lab_us-gaap_PreferredStockSharesOutstanding_F9781E9B1B77D92D7108D2E45BD34596_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding_0E7D942C179252DE901A0B012EF19469" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Preferred Stock, Shares Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_0E7D942C179252DE901A0B012EF19469" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_D81656C1E5D2E55D83F0D2E45BD3B8B5_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_431CF39BFE095B1ABC8E85BC4E0D6534" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, par value (in dollars per share) </link:label>
<link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_D81656C1E5D2E55D83F0D2E45BD3B8B5_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_431CF39BFE095B1ABC8E85BC4E0D6534" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Par or Stated Value Per Share </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_431CF39BFE095B1ABC8E85BC4E0D6534" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CommonStockSharesAuthorized_5F7DBA29C51D45FE7AFCD2E45BD369AE_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_0CA06D2DE93651BDBB30928017A49C41" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, shares authorized (in shares) </link:label>
<link:label id="lab_us-gaap_CommonStockSharesAuthorized_5F7DBA29C51D45FE7AFCD2E45BD369AE_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_0CA06D2DE93651BDBB30928017A49C41" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares Authorized </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_0CA06D2DE93651BDBB30928017A49C41" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CommonStockSharesIssued_6EAC4C9A87E805249698D2E45BD378D8_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_FE2E4F7ACFF3552E8A30C754A14DC9A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, shares issued (in shares) </link:label>
<link:label id="lab_us-gaap_CommonStockSharesIssued_6EAC4C9A87E805249698D2E45BD378D8_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_FE2E4F7ACFF3552E8A30C754A14DC9A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares, Issued </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_FE2E4F7ACFF3552E8A30C754A14DC9A0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CommonStockSharesOutstanding_987D6A745AB3984211F4D2E45BD3CC40_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_EF5493DE11E85DD199C090C519BD8B14" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Common stock, shares outstanding (in shares) </link:label>
<link:label id="lab_us-gaap_CommonStockSharesOutstanding_987D6A745AB3984211F4D2E45BD3CC40_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_EF5493DE11E85DD199C090C519BD8B14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Common Stock, Shares, Outstanding </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_EF5493DE11E85DD199C090C519BD8B14" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TreasuryStockShares_8B0312926B19006B2206D2E45BD47FA0_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockShares_13662B87D33D5CD785171E7EB2FE5FAB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Treasury stock (in shares) </link:label>
<link:label id="lab_us-gaap_TreasuryStockShares_8B0312926B19006B2206D2E45BD47FA0_label_en-US" xlink:label="lab_us-gaap_TreasuryStockShares_13662B87D33D5CD785171E7EB2FE5FAB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Treasury Stock, Shares </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_13662B87D33D5CD785171E7EB2FE5FAB" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeTable_DFB673B2762EC6FA4207F8BF6C0B791F_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeTable_DFB673B2762EC6FA4207F8BF6C0B791F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Derivative [Table] </link:label>
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<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_1862467DC0D875D0E46DF8BF6C0D5005" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DerivativeTermOfContract_5E91D862D5DB842E23A1F99F88D8567D_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeTermOfContract_5E91D862D5DB842E23A1F99F88D8567D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Derivative contract, period outstanding </link:label>
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<link:label id="lab_us-gaap_AccountsReceivableNetCurrentAbstract_42454CE3BF97ACC9D4AC36CD0DA1D18F_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrentAbstract_42454CE3BF97ACC9D4AC36CD0DA1D18F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of trade receivables </link:label>
<link:label id="lab_us-gaap_AccountsReceivableNetCurrentAbstract_42454CE3BF97ACC9D4AC36CD0DA1D18F_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrentAbstract_42454CE3BF97ACC9D4AC36CD0DA1D18F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] </link:label>
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<link:label id="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A40E9AE504079C48AA4C36CD0DA1BE55_verboseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetGrossCurrent_A40E9AE504079C48AA4C36CD0DA1BE55" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Unbilled revenue </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerAssetGrossCurrent" xlink:label="loc_us-gaap_ContractWithCustomerAssetGrossCurrent_A40E9AE504079C48AA4C36CD0DA1BE55" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875_totalLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total </link:label>
<link:label id="lab_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, before Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875" xlink:to="lab_us-gaap_AccountsReceivableGrossCurrent_6075D878FC3A3861972636CD0DA18875" xlink:type="arc"/>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7A460D1FBBC590BFDC6436CD0DA186A1_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7A460D1FBBC590BFDC6436CD0DA186A1" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Less: Allowance for doubtful accounts </link:label>
<link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7A460D1FBBC590BFDC6436CD0DA186A1_label_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7A460D1FBBC590BFDC6436CD0DA186A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, Allowance for Credit Loss, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_7A460D1FBBC590BFDC6436CD0DA186A1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccountsReceivableNetCurrent_B5B5AEB9C768BCDA3E7936CD0DA2DCB3_totalLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_B5B5AEB9C768BCDA3E7936CD0DA2DCB3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Trade receivables, net </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_B5B5AEB9C768BCDA3E7936CD0DA2DCB3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of inventories </link:label>
<link:label id="lab_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366_label_en-US" xlink:label="lab_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory, Net [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryNetAbstract" xlink:label="loc_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366" xlink:to="lab_us-gaap_InventoryNetAbstract_A1786D86BB3371A11DFA36CD0DA21366" xlink:type="arc"/>
<link:label id="lab_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_A354B0F1BFE11D75F09D36CD0DA21B39_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_A354B0F1BFE11D75F09D36CD0DA21B39" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Raw materials and supplies </link:label>
<link:label id="lab_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_A354B0F1BFE11D75F09D36CD0DA21B39_label_en-US" xlink:label="lab_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_A354B0F1BFE11D75F09D36CD0DA21B39" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory, Raw Materials and Supplies, Net of Reserves </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSuppliesNetOfReserves_A354B0F1BFE11D75F09D36CD0DA21B39" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InventoryWorkInProcessNetOfReserves_A4DD84C3AB2AA96D343036CD0DA20216_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryWorkInProcessNetOfReserves_A4DD84C3AB2AA96D343036CD0DA20216" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Work in process </link:label>
<link:label id="lab_us-gaap_InventoryWorkInProcessNetOfReserves_A4DD84C3AB2AA96D343036CD0DA20216_label_en-US" xlink:label="lab_us-gaap_InventoryWorkInProcessNetOfReserves_A4DD84C3AB2AA96D343036CD0DA20216" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory, Work in Process, Net of Reserves </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_A4DD84C3AB2AA96D343036CD0DA20216" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Finished products </link:label>
<link:label id="lab_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B_label_en-US" xlink:label="lab_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Inventory, Finished Goods, Net of Reserves </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B" xlink:to="lab_us-gaap_InventoryFinishedGoodsNetOfReserves_FEDE6F425E03191E5FA336CD0DA2997B" xlink:type="arc"/>
<link:label id="lab_us-gaap_InventoryNet_BD204E60F0FBA7A1D51436CD0DA35071_totalLabel_en-US" xlink:label="lab_us-gaap_InventoryNet_BD204E60F0FBA7A1D51436CD0DA35071" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Inventories </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_BD204E60F0FBA7A1D51436CD0DA35071" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet_BD204E60F0FBA7A1D51436CD0DA35071" xlink:to="lab_us-gaap_InventoryNet_BD204E60F0FBA7A1D51436CD0DA35071" xlink:type="arc"/>
<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_3A4048A0972466A637F036CD0DA34AC9_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_3A4048A0972466A637F036CD0DA34AC9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of other current assets </link:label>
<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_3A4048A0972466A637F036CD0DA34AC9_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_3A4048A0972466A637F036CD0DA34AC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense and Other Assets, Current [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_3A4048A0972466A637F036CD0DA34AC9" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PrepaidTaxes_17DDB3A1DE7138AABA4236CD0DA333F1_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidTaxes_17DDB3A1DE7138AABA4236CD0DA333F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid income tax </link:label>
<link:label id="lab_us-gaap_PrepaidTaxes_17DDB3A1DE7138AABA4236CD0DA333F1_label_en-US" xlink:label="lab_us-gaap_PrepaidTaxes_17DDB3A1DE7138AABA4236CD0DA333F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Taxes </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidTaxes" xlink:label="loc_us-gaap_PrepaidTaxes_17DDB3A1DE7138AABA4236CD0DA333F1" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShortTermInvestments_A69C9456FED0EE0038C536CD0DA3D1C4_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermInvestments_A69C9456FED0EE0038C536CD0DA3D1C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Investments </link:label>
<link:label id="lab_us-gaap_ShortTermInvestments_A69C9456FED0EE0038C536CD0DA3D1C4_label_en-US" xlink:label="lab_us-gaap_ShortTermInvestments_A69C9456FED0EE0038C536CD0DA3D1C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Short-term Investments </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments_A69C9456FED0EE0038C536CD0DA3D1C4" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_FD8477BC99C7DFB49F4C36CD0DA395B8_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_FD8477BC99C7DFB49F4C36CD0DA395B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash </link:label>
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<link:label id="lab_us-gaap_OtherAssetsCurrent_9D2D8DE067812D6D696A36CD0DA3E337_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_9D2D8DE067812D6D696A36CD0DA3E337" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_OtherAssetsCurrent_9D2D8DE067812D6D696A36CD0DA3E337_label_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_9D2D8DE067812D6D696A36CD0DA3E337" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Current </link:label>
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<link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_A72C5C04F66A350EA59636CD0DA4AA5B_totalLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_A72C5C04F66A350EA59636CD0DA4AA5B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Other current assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_A72C5C04F66A350EA59636CD0DA4AA5B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ACB7B5FD90FFB7D12BC636CD0DA41391_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ACB7B5FD90FFB7D12BC636CD0DA41391" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Venture capital investments </link:label>
<link:label id="lab_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ACB7B5FD90FFB7D12BC636CD0DA41391_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ACB7B5FD90FFB7D12BC636CD0DA41391" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ACB7B5FD90FFB7D12BC636CD0DA41391" xlink:type="locator"/>
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<link:label id="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8491D5A4D7992AE29E7F36CD0DA4BCC7_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8491D5A4D7992AE29E7F36CD0DA4BCC7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other investments </link:label>
<link:label id="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8491D5A4D7992AE29E7F36CD0DA4BCC7_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8491D5A4D7992AE29E7F36CD0DA4BCC7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Securities without Readily Determinable Fair Value, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_8491D5A4D7992AE29E7F36CD0DA4BCC7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_CashSurrenderValueOfLifeInsurance_E497DBD3172D13E1DCF136CD0DA46CEC_terseLabel_en-US" xlink:label="lab_us-gaap_CashSurrenderValueOfLifeInsurance_E497DBD3172D13E1DCF136CD0DA46CEC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Life insurance policies </link:label>
<link:label id="lab_us-gaap_CashSurrenderValueOfLifeInsurance_E497DBD3172D13E1DCF136CD0DA46CEC_label_en-US" xlink:label="lab_us-gaap_CashSurrenderValueOfLifeInsurance_E497DBD3172D13E1DCF136CD0DA46CEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Surrender Value of Life Insurance </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashSurrenderValueOfLifeInsurance" xlink:label="loc_us-gaap_CashSurrenderValueOfLifeInsurance_E497DBD3172D13E1DCF136CD0DA46CEC" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RestrictedCashAndInvestments_90F3F5BAECD6059A43D036CD0DA4DFF6_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndInvestments_90F3F5BAECD6059A43D036CD0DA4DFF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted cash </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedCashAndInvestments" xlink:label="loc_us-gaap_RestrictedCashAndInvestments_90F3F5BAECD6059A43D036CD0DA4DFF6" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherAssetsMiscellaneousNoncurrent_238FE0BD31AD778C835136CD0DA51123_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsMiscellaneousNoncurrent_238FE0BD31AD778C835136CD0DA51123" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_us-gaap_OtherAssetsMiscellaneousNoncurrent_238FE0BD31AD778C835136CD0DA51123_label_en-US" xlink:label="lab_us-gaap_OtherAssetsMiscellaneousNoncurrent_238FE0BD31AD778C835136CD0DA51123" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Miscellaneous, Noncurrent </link:label>
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<link:label id="lab_us-gaap_OtherAssetsNoncurrent_E036C081188E4D009AE436CD0DA5756F_totalLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_E036C081188E4D009AE436CD0DA5756F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Other assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_E036C081188E4D009AE436CD0DA5756F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherLiabilitiesCurrentAbstract_C28AF0BE450AC6135EEF36CD0DA56E2B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrentAbstract_C28AF0BE450AC6135EEF36CD0DA56E2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of other current liabilities </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesCurrentAbstract_C28AF0BE450AC6135EEF36CD0DA56E2B_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrentAbstract_C28AF0BE450AC6135EEF36CD0DA56E2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Current [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_OtherLiabilitiesCurrentAbstract_C28AF0BE450AC6135EEF36CD0DA56E2B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_1EE195F5C855DF84276436CD0DA54B8C_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_1EE195F5C855DF84276436CD0DA54B8C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease right-of-use liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_1EE195F5C855DF84276436CD0DA54B8C" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_B06B6035B90E8EF36ECD36CD0DA52891_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_B06B6035B90E8EF36ECD36CD0DA52891" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued income taxes </link:label>
<link:label id="lab_us-gaap_AccruedIncomeTaxesCurrent_B06B6035B90E8EF36ECD36CD0DA52891_label_en-US" xlink:label="lab_us-gaap_AccruedIncomeTaxesCurrent_B06B6035B90E8EF36ECD36CD0DA52891" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Income Taxes, Current </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_B06B6035B90E8EF36ECD36CD0DA52891" xlink:type="locator"/>
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<link:label id="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_89DCF7F10DA655A223F636CD0DA54F89_verboseLabel_en-US" xlink:label="lab_crl_ContractWithCustomerLiabilityCustomerDeposits_89DCF7F10DA655A223F636CD0DA54F89" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Customer contract deposits </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ContractWithCustomerLiabilityCustomerDeposits" xlink:label="loc_crl_ContractWithCustomerLiabilityCustomerDeposits_89DCF7F10DA655A223F636CD0DA54F89" xlink:type="locator"/>
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<link:label id="lab_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043_terseLabel_en-US" xlink:label="lab_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other </link:label>
<link:label id="lab_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043_label_en-US" xlink:label="lab_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Interest and Other Liabilities, Current </link:label>
<link:label id="lab_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043_documentation_en-US" xlink:label="lab_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Carrying value as of the balance sheet date of accrued interest and other liabilities. It is used to reflect the current portion of liabilities (due within one year or within normal operating cycle, if longer). </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_AccruedInterestAndOtherLiabilitiesCurrent" xlink:label="loc_crl_AccruedInterestAndOtherLiabilitiesCurrent_6C3F1BD62CE3E5B165CA36CD0DA65043" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OtherLiabilitiesCurrent_A49FD850EAB4C5A167E936CD0DA6B030_totalLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_A49FD850EAB4C5A167E936CD0DA6B030" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Other current liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_A49FD850EAB4C5A167E936CD0DA6B030" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_A49FD850EAB4C5A167E936CD0DA6B030" xlink:to="lab_us-gaap_OtherLiabilitiesCurrent_A49FD850EAB4C5A167E936CD0DA6B030" xlink:type="arc"/>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_241F27FA8307F22577F136CD0DA6C076_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_241F27FA8307F22577F136CD0DA6C076" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of other long-term liabilities </link:label>
<link:label id="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_241F27FA8307F22577F136CD0DA6C076_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_241F27FA8307F22577F136CD0DA6C076" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Noncurrent [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrentAbstract_241F27FA8307F22577F136CD0DA6C076" xlink:type="locator"/>
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<link:label id="lab_us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalLiabilityNoncurrent_04A15AB7401B001CDF7D36CD0DA66A21_terseLabel_en-US" xlink:label="lab_us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalLiabilityNoncurrent_04A15AB7401B001CDF7D36CD0DA66A21" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> U.S. Transition Tax </link:label>
<link:label id="lab_us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalLiabilityNoncurrent_04A15AB7401B001CDF7D36CD0DA66A21_label_en-US" xlink:label="lab_us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalLiabilityNoncurrent_04A15AB7401B001CDF7D36CD0DA66A21" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalLiabilityNoncurrent" xlink:label="loc_us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalLiabilityNoncurrent_04A15AB7401B001CDF7D36CD0DA66A21" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_B07CFC1067FB855B352636CD0DA67380_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_B07CFC1067FB855B352636CD0DA67380" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term pension liability </link:label>
<link:label id="lab_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_B07CFC1067FB855B352636CD0DA67380_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_B07CFC1067FB855B352636CD0DA67380" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liability, Defined Benefit Pension Plan, Noncurrent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent_B07CFC1067FB855B352636CD0DA67380" xlink:type="locator"/>
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<link:label id="lab_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_D46DDC3827099A5C072E36CD0DA7B540_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_D46DDC3827099A5C072E36CD0DA7B540" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued executive supplemental life insurance retirement plan </link:label>
<link:label id="lab_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_D46DDC3827099A5C072E36CD0DA7B540_label_en-US" xlink:label="lab_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_D46DDC3827099A5C072E36CD0DA7B540" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Compensation Liability, Classified, Noncurrent </link:label>
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<link:label id="lab_crl_WeightedAverageRemainingLeaseTermAbstract_6B022AB46AEF46E9EED8D2E45C4C720F_terseLabel_en-US" xlink:label="lab_crl_WeightedAverageRemainingLeaseTermAbstract_FF17B7C6AB4E5CCEB4A72D6AC775A7B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average remaining lease term (in years) </link:label>
<link:label id="lab_crl_WeightedAverageRemainingLeaseTermAbstract_6B022AB46AEF46E9EED8D2E45C4C720F_label_en-US" xlink:label="lab_crl_WeightedAverageRemainingLeaseTermAbstract_FF17B7C6AB4E5CCEB4A72D6AC775A7B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Weighted Average Remaining Lease Term [Abstract] </link:label>
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<link:label id="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_A8075AF13F4CB1B6AFBED2E45C4DB0F3_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_812417DC8F745D51A82E435FB15291C3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease </link:label>
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<link:label id="lab_crl_LeasesWeightedAverageDiscountRateAbstract_B0EC70DF8447108729C1D2E45C4D2DF9_terseLabel_en-US" xlink:label="lab_crl_LeasesWeightedAverageDiscountRateAbstract_B15B702F7430562D8407218BBE82C854" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Weighted-average discount rate </link:label>
<link:label id="lab_crl_LeasesWeightedAverageDiscountRateAbstract_B0EC70DF8447108729C1D2E45C4D2DF9_label_en-US" xlink:label="lab_crl_LeasesWeightedAverageDiscountRateAbstract_B15B702F7430562D8407218BBE82C854" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leases, Weighted Average Discount Rate [Abstract] </link:label>
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<link:loc xlink:href="crl-20190928.xsd#crl_LeasesWeightedAverageDiscountRateAbstract" xlink:label="loc_crl_LeasesWeightedAverageDiscountRateAbstract_B15B702F7430562D8407218BBE82C854" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_E2F918493DBD4F1E93FB36CD0D4F1BD1_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_E2F918493DBD4F1E93FB36CD0D4F1BD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] </link:label>
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<link:label id="lab_crl_VitalRiverMember_0FB80DBE9E504E9F70C836CD0D4FF88F_terseLabel_en-US" xlink:label="lab_crl_VitalRiverMember_0FB80DBE9E504E9F70C836CD0D4FF88F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Vital River </link:label>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_A7D2C0BC74A1E8B75FEF36CD0D51334E_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_A7D2C0BC74A1E8B75FEF36CD0D51334E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities [Axis] </link:label>
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<link:label id="lab_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4_terseLabel_en-US" xlink:label="lab_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restricted Stock and Restricted Stock Units </link:label>
<link:label id="lab_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4_label_en-US" xlink:label="lab_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restricted Stock and Restricted Stock Units [Member] </link:label>
<link:label id="lab_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4_documentation_en-US" xlink:label="lab_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Restricted Stock and Restricted Stock Units [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_RestrictedStockandRestrictedStockUnitsMember" xlink:label="loc_crl_RestrictedStockandRestrictedStockUnitsMember_1E94151940A46355D72636CD0D51A6C4" xlink:type="locator"/>
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<link:label id="lab_srt_OwnershipAxis_30A2D45D986FECDC5E4F36CD0D51A0DE_terseLabel_en-US" xlink:label="lab_srt_OwnershipAxis_30A2D45D986FECDC5E4F36CD0D51A0DE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ownership [Axis] </link:label>
<link:label id="lab_srt_OwnershipAxis_30A2D45D986FECDC5E4F36CD0D51A0DE_label_en-US" xlink:label="lab_srt_OwnershipAxis_30A2D45D986FECDC5E4F36CD0D51A0DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Ownership [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_OwnershipAxis" xlink:label="loc_srt_OwnershipAxis_30A2D45D986FECDC5E4F36CD0D51A0DE" xlink:type="locator"/>
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<link:label id="lab_srt_OwnershipDomain_A203A47B3CFAD28CF55736CD0D523E10_terseLabel_en-US" xlink:label="lab_srt_OwnershipDomain_A203A47B3CFAD28CF55736CD0D523E10" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ownership [Domain] </link:label>
<link:label id="lab_srt_OwnershipDomain_A203A47B3CFAD28CF55736CD0D523E10_label_en-US" xlink:label="lab_srt_OwnershipDomain_A203A47B3CFAD28CF55736CD0D523E10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Ownership [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_OwnershipDomain" xlink:label="loc_srt_OwnershipDomain_A203A47B3CFAD28CF55736CD0D523E10" xlink:type="locator"/>
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<link:label id="lab_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2_terseLabel_en-US" xlink:label="lab_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Supplier </link:label>
<link:label id="lab_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2_label_en-US" xlink:label="lab_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplier [Member] </link:label>
<link:label id="lab_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2_documentation_en-US" xlink:label="lab_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Supplier [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_SupplierMember" xlink:label="loc_crl_SupplierMember_C6D3F2B74327715D869636CD0D522DE2" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_95CFB05FD46BD380FFBF36CD0D52ECAD_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_95CFB05FD46BD380FFBF36CD0D52ECAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] </link:label>
<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_95CFB05FD46BD380FFBF36CD0D52ECAD_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_95CFB05FD46BD380FFBF36CD0D52ECAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_95CFB05FD46BD380FFBF36CD0D52ECAD" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_E7C2D8119AA8A3AAF30136CD0D536473_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_E7C2D8119AA8A3AAF30136CD0D536473" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Antidilutive securities excluded from computation of earnings per share amount (in shares) </link:label>
<link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_E7C2D8119AA8A3AAF30136CD0D536473_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_E7C2D8119AA8A3AAF30136CD0D536473" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_E7C2D8119AA8A3AAF30136CD0D536473" xlink:type="locator"/>
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<link:label id="lab_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8_negatedLabel_en-US" xlink:label="lab_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Additional equity interest percentage purchased </link:label>
<link:label id="lab_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8_label_en-US" xlink:label="lab_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Equity Method Investment, Increase (Decrease) In Ownership Percentage By Parent </link:label>
<link:label id="lab_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8_documentation_en-US" xlink:label="lab_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Equity Method Investment, Increase (Decrease) In Ownership Percentage By Parent </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent" xlink:label="loc_crl_EquityMethodInvestmentIncreaseDecreaseInOwnershipPercentageByParent_01CE955928468FD3CA2A36CD0D5350F8" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent_791A2A7BAFA5E1755FA236CD0D53EB48_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent_791A2A7BAFA5E1755FA236CD0D53EB48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchase of additional equity interest </link:label>
<link:label id="lab_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent_791A2A7BAFA5E1755FA236CD0D53EB48_label_en-US" xlink:label="lab_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent_791A2A7BAFA5E1755FA236CD0D53EB48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent" xlink:label="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent_791A2A7BAFA5E1755FA236CD0D53EB48" xlink:type="locator"/>
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<link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_09C4E1081C1E8263825136D1DDC6AD61_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_09C4E1081C1E8263825136D1DDC6AD61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ownership percentage </link:label>
<link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_09C4E1081C1E8263825136D1DDC6AD61_label_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_09C4E1081C1E8263825136D1DDC6AD61" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest, Ownership Percentage by Parent </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_09C4E1081C1E8263825136D1DDC6AD61" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain_A1D4403E9EDC2CE8D16D36CD0D53F446_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain_A1D4403E9EDC2CE8D16D36CD0D53F446" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gain in equity equal to the excess fair value of additional equity interest purchase </link:label>
<link:label id="lab_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain_A1D4403E9EDC2CE8D16D36CD0D53F446_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain_A1D4403E9EDC2CE8D16D36CD0D53F446" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain" xlink:label="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain_A1D4403E9EDC2CE8D16D36CD0D53F446" xlink:type="locator"/>
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<link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_FDDF6EE3B28BA5F56E1B36CD0D533363_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_FDDF6EE3B28BA5F56E1B36CD0D533363" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Noncontrolling interest ownership percentage </link:label>
<link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_FDDF6EE3B28BA5F56E1B36CD0D533363_label_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_FDDF6EE3B28BA5F56E1B36CD0D533363" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_FDDF6EE3B28BA5F56E1B36CD0D533363" xlink:type="locator"/>
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<link:label id="lab_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized_2E561D7A945E3CD0A3ED36CD0D54410E_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized_2E561D7A945E3CD0A3ED36CD0D54410E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Charges equal to the excess fair value of hybrid equity instrument </link:label>
<link:label id="lab_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized_2E561D7A945E3CD0A3ED36CD0D54410E_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized_2E561D7A945E3CD0A3ED36CD0D54410E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized" xlink:label="loc_us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized_2E561D7A945E3CD0A3ED36CD0D54410E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RedeemableNoncontrollingInterestEquityRedemptionValue_31984B9E82B4791D333736CD0D54B23E_terseLabel_en-US" xlink:label="lab_us-gaap_RedeemableNoncontrollingInterestEquityRedemptionValue_31984B9E82B4791D333736CD0D54B23E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contractually defined redemption value </link:label>
<link:label id="lab_us-gaap_RedeemableNoncontrollingInterestEquityRedemptionValue_31984B9E82B4791D333736CD0D54B23E_label_en-US" xlink:label="lab_us-gaap_RedeemableNoncontrollingInterestEquityRedemptionValue_31984B9E82B4791D333736CD0D54B23E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Redeemable Noncontrolling Interest, Equity, Redemption Value </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RedeemableNoncontrollingInterestEquityRedemptionValue" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityRedemptionValue_31984B9E82B4791D333736CD0D54B23E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_B6BB89DBDB76AD568079D2E45C499BE0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_BB057E3EDB5B51C0A9444F6070255B36" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis </link:label>
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<link:label id="lab_crl_FairValueContingentConsiderationTableTextBlock_93BADDEAC4ECDFA2D55FD2E45C491EFA_terseLabel_en-US" xlink:label="lab_crl_FairValueContingentConsiderationTableTextBlock_AFA2B82A9833582F9019A64AA1ED7A6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Rollforward of Contingent Consideration Related to Previous Acquisitions </link:label>
<link:label id="lab_crl_FairValueContingentConsiderationTableTextBlock_93BADDEAC4ECDFA2D55FD2E45C491EFA_label_en-US" xlink:label="lab_crl_FairValueContingentConsiderationTableTextBlock_AFA2B82A9833582F9019A64AA1ED7A6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, Contingent Consideration [Table Text Block] </link:label>
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<link:label id="lab_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5_terseLabel_en-US" xlink:label="lab_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Treasury Share Repurchases [Table] </link:label>
<link:label id="lab_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5_label_en-US" xlink:label="lab_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Stock Repurchases [Table] </link:label>
<link:label id="lab_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5_documentation_en-US" xlink:label="lab_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Schedule detailing information relating to stock repurchases. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ScheduleOfStockRepurchasesTable" xlink:label="loc_crl_ScheduleOfStockRepurchasesTable_7D3EC3DCA44D1838EA9EF8BF6D00B7B5" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ShareRepurchaseProgramAxis_F07785BC940695F36AEDF8BF6D001F70_terseLabel_en-US" xlink:label="lab_us-gaap_ShareRepurchaseProgramAxis_F07785BC940695F36AEDF8BF6D001F70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Share Repurchase Program [Axis] </link:label>
<link:label id="lab_us-gaap_ShareRepurchaseProgramAxis_F07785BC940695F36AEDF8BF6D001F70_label_en-US" xlink:label="lab_us-gaap_ShareRepurchaseProgramAxis_F07785BC940695F36AEDF8BF6D001F70" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share Repurchase Program [Axis] </link:label>
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<link:label id="lab_us-gaap_ShareRepurchaseProgramDomain_F24231A875A412C4836BF8BF6D01CFB3_terseLabel_en-US" xlink:label="lab_us-gaap_ShareRepurchaseProgramDomain_F24231A875A412C4836BF8BF6D01CFB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Share Repurchase Program [Domain] </link:label>
<link:label id="lab_us-gaap_ShareRepurchaseProgramDomain_F24231A875A412C4836BF8BF6D01CFB3_label_en-US" xlink:label="lab_us-gaap_ShareRepurchaseProgramDomain_F24231A875A412C4836BF8BF6D01CFB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share Repurchase Program [Domain] </link:label>
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<link:label id="lab_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475_terseLabel_en-US" xlink:label="lab_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Authorized Share Repurchase Program </link:label>
<link:label id="lab_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475_label_en-US" xlink:label="lab_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Authorized Share Repurchase Program [Member] </link:label>
<link:label id="lab_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475_documentation_en-US" xlink:label="lab_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Authorized Share Repurchase Program [Member] </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_AuthorizedShareRepurchaseProgramMember" xlink:label="loc_crl_AuthorizedShareRepurchaseProgramMember_39E83332A6A84C7E3831F8BF6D011475" xlink:type="locator"/>
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<link:label id="lab_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48_terseLabel_en-US" xlink:label="lab_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Treasury Shares </link:label>
<link:label id="lab_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48_label_en-US" xlink:label="lab_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Repurchases [Line Items] </link:label>
<link:label id="lab_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48_documentation_en-US" xlink:label="lab_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_StockRepurchasesLineItems" xlink:label="loc_crl_StockRepurchasesLineItems_ED8BF06FE4007170B76AF8BF6D02BA48" xlink:type="locator"/>
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<link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_AD957F99A85BAD756A4AF8BF6D02BD8E_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_AD957F99A85BAD756A4AF8BF6D02BD8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchase of treasury stock </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_AD957F99A85BAD756A4AF8BF6D02BD8E" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockRepurchasedDuringPeriodShares_D954E6A748A3FE0F8228F8BF6D02AC20_terseLabel_en-US" xlink:label="lab_us-gaap_StockRepurchasedDuringPeriodShares_D954E6A748A3FE0F8228F8BF6D02AC20" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Shares repurchased during period (in shares) </link:label>
<link:label id="lab_us-gaap_StockRepurchasedDuringPeriodShares_D954E6A748A3FE0F8228F8BF6D02AC20_label_en-US" xlink:label="lab_us-gaap_StockRepurchasedDuringPeriodShares_D954E6A748A3FE0F8228F8BF6D02AC20" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Repurchased During Period, Shares </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_D954E6A748A3FE0F8228F8BF6D02AC20" xlink:type="locator"/>
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<link:label id="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_C35CFBD25F6180293314F8BF6D033ADE_terseLabel_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_C35CFBD25F6180293314F8BF6D033ADE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Remaining authorized repurchase amount </link:label>
<link:label id="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_C35CFBD25F6180293314F8BF6D033ADE_label_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_C35CFBD25F6180293314F8BF6D033ADE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stock Repurchase Program, Remaining Authorized Repurchase Amount </link:label>
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<link:label id="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_2DFE510BE4E42082767CF8BF6D03729B_terseLabel_en-US" xlink:label="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_2DFE510BE4E42082767CF8BF6D03729B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Shares acquired to satisfy minimum individual statutory tax withholdings for vesting of equity instruments (in shares) </link:label>
<link:label id="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_2DFE510BE4E42082767CF8BF6D03729B_label_en-US" xlink:label="lab_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_2DFE510BE4E42082767CF8BF6D03729B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation </link:label>
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<link:label id="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_3A5DDDD31FCD0D2EF951F8BF6D03B62E_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_3A5DDDD31FCD0D2EF951F8BF6D03B62E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Shares acquired to satisfy minimum individual statutory tax withholdings for vesting of equity instruments </link:label>
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<link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_BD3C1FFE1F2A8300EFF2D2E45CEB165D_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_96AE6905499C5E0DADD0C07A7E96F190" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of Net Trade Receivables </link:label>
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<link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_F1308A4FE209FB950384D2E45CEB0018_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_09C055C319BF509889949FAFC1CB9409" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of Inventories </link:label>
<link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_F1308A4FE209FB950384D2E45CEB0018_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_09C055C319BF509889949FAFC1CB9409" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Inventory, Current [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_09C055C319BF509889949FAFC1CB9409" xlink:type="locator"/>
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<link:label id="lab_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_CA9D12B9D7F9A379EBA0D2E45CEC3B7C_terseLabel_en-US" xlink:label="lab_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_D83DC58EC88757A8B066F28AF534775D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of Other Current Assets </link:label>
<link:label id="lab_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_CA9D12B9D7F9A379EBA0D2E45CEC3B7C_label_en-US" xlink:label="lab_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_D83DC58EC88757A8B066F28AF534775D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Other Assets, Current [Table Text Block] </link:label>
<link:label id="lab_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_CA9D12B9D7F9A379EBA0D2E45CEC3B7C_documentation_en-US" xlink:label="lab_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_D83DC58EC88757A8B066F28AF534775D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tabular disclosure of current assets. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ScheduleOfOtherAssetsCurrentTableTextBlock" xlink:label="loc_crl_ScheduleOfOtherAssetsCurrentTableTextBlock_D83DC58EC88757A8B066F28AF534775D" xlink:type="locator"/>
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<link:label id="lab_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_A14A5B30AC4D4FA69F46D2E45CECA83E_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_365C3C3F458E5E5D9AB00CF1CDFB3A06" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of Other Assets </link:label>
<link:label id="lab_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_A14A5B30AC4D4FA69F46D2E45CECA83E_label_en-US" xlink:label="lab_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_365C3C3F458E5E5D9AB00CF1CDFB3A06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Other Assets, Noncurrent [Table Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock" xlink:label="loc_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_365C3C3F458E5E5D9AB00CF1CDFB3A06" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_365C3C3F458E5E5D9AB00CF1CDFB3A06" xlink:to="lab_us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock_365C3C3F458E5E5D9AB00CF1CDFB3A06" xlink:type="arc"/>
<link:label id="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_B3DEF2808D56FAB579A9D2E45CEC3852_terseLabel_en-US" xlink:label="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_2AC6D5E83A3B572FBC6A2E4D71A23312" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of Other Current Liabilities </link:label>
<link:label id="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_B3DEF2808D56FAB579A9D2E45CEC3852_label_en-US" xlink:label="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_2AC6D5E83A3B572FBC6A2E4D71A23312" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Other Liabilities Current [Table Text Block] </link:label>
<link:label id="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_B3DEF2808D56FAB579A9D2E45CEC3852_documentation_en-US" xlink:label="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_2AC6D5E83A3B572FBC6A2E4D71A23312" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tabular disclosure of current liabilities. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock" xlink:label="loc_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_2AC6D5E83A3B572FBC6A2E4D71A23312" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_2AC6D5E83A3B572FBC6A2E4D71A23312" xlink:to="lab_crl_ScheduleOfOtherLiabilitiesCurrentTableTextBlock_2AC6D5E83A3B572FBC6A2E4D71A23312" xlink:type="arc"/>
<link:label id="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_155C9C1A184EFC690511D2E45CECCF13_terseLabel_en-US" xlink:label="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_2330BC6934CA565BA9CC489A57B2AA65" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Composition of Other Long-Term Liabilities </link:label>
<link:label id="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_155C9C1A184EFC690511D2E45CECCF13_label_en-US" xlink:label="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_2330BC6934CA565BA9CC489A57B2AA65" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Other Liabilities, Noncurrent [Table Text Block] </link:label>
<link:label id="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_155C9C1A184EFC690511D2E45CECCF13_documentation_en-US" xlink:label="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_2330BC6934CA565BA9CC489A57B2AA65" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Tabular disclosure of noncurrent liabilities. </link:label>
<link:loc xlink:href="crl-20190928.xsd#crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock" xlink:label="loc_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_2330BC6934CA565BA9CC489A57B2AA65" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_2330BC6934CA565BA9CC489A57B2AA65" xlink:to="lab_crl_ScheduleOfOtherLiabilitiesNoncurrentTableTextBlock_2330BC6934CA565BA9CC489A57B2AA65" xlink:type="arc"/>
<link:label id="lab_us-gaap_IncomeStatementAbstract_ED5157A381A2F56C33BCF8BF7002477E_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_ED5157A381A2F56C33BCF8BF7002477E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_ED5157A381A2F56C33BCF8BF7002477E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_ED5157A381A2F56C33BCF8BF7002477E" xlink:to="lab_us-gaap_IncomeStatementAbstract_ED5157A381A2F56C33BCF8BF7002477E" xlink:type="arc"/>
<link:label id="lab_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Product and Service [Axis] </link:label>
<link:label id="lab_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Product and Service [Axis] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD" xlink:to="lab_srt_ProductOrServiceAxis_69557ED1019D87E4A9BBF8BF7003DBAD" xlink:type="arc"/>
<link:label id="lab_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459_terseLabel_en-US" xlink:label="lab_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Product and Service [Domain] </link:label>
<link:label id="lab_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459_label_en-US" xlink:label="lab_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Product and Service [Domain] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459" xlink:to="lab_srt_ProductsAndServicesDomain_966AB8D722D9E7A1618BF8BF70035459" xlink:type="arc"/>
<link:label id="lab_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0_terseLabel_en-US" xlink:label="lab_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Service </link:label>
<link:label id="lab_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0_label_en-US" xlink:label="lab_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Service [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ServiceMember" xlink:label="loc_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0" xlink:to="lab_us-gaap_ServiceMember_14611012200ED60291CCF8BF70039DF0" xlink:type="arc"/>
<link:label id="lab_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B_terseLabel_en-US" xlink:label="lab_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Product </link:label>
<link:label id="lab_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B_label_en-US" xlink:label="lab_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Product [Member] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductMember" xlink:label="loc_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B" xlink:to="lab_us-gaap_ProductMember_FDF24E9FC83EF3991F7CF8BF7004175B" xlink:type="arc"/>
<link:label id="lab_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4_terseLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Costs and expenses: </link:label>
<link:label id="lab_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4_label_en-US" xlink:label="lab_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Costs and Expenses [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4" xlink:to="lab_us-gaap_CostsAndExpensesAbstract_D967C2A3D70DF0E94D82F8BF700416A4" xlink:type="arc"/>
<link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_BF38E192543A53059373F8BF7004E536_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold_BF38E192543A53059373F8BF7004E536" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cost of services provided and products sold (excluding amortization of intangible assets) </link:label>
<link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_BF38E192543A53059373F8BF7004E536_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold_BF38E192543A53059373F8BF7004E536" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cost of Goods and Services Sold </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_BF38E192543A53059373F8BF7004E536" xlink:type="locator"/>
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<link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_9262CA7C25A7EEC536B6F8BF7005A2E3_terseLabel_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_9262CA7C25A7EEC536B6F8BF7005A2E3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Selling, general and administrative </link:label>
<link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_9262CA7C25A7EEC536B6F8BF7005A2E3_label_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_9262CA7C25A7EEC536B6F8BF7005A2E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Selling, General and Administrative Expense </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_9262CA7C25A7EEC536B6F8BF7005A2E3" xlink:type="locator"/>
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<link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_C4F3D20212EE624FD6C8F8BF7005935A_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_C4F3D20212EE624FD6C8F8BF7005935A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of intangible assets </link:label>
<link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_C4F3D20212EE624FD6C8F8BF7005935A_label_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_C4F3D20212EE624FD6C8F8BF7005935A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of Intangible Assets </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_C4F3D20212EE624FD6C8F8BF7005935A" xlink:type="locator"/>
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<link:label id="lab_us-gaap_OperatingIncomeLoss_591348F1AC0D88D6814FF8BF7005FAE0_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_591348F1AC0D88D6814FF8BF7005FAE0" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Operating income </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_591348F1AC0D88D6814FF8BF7005FAE0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_9981C3A11C46DAA4FBF6F8BF700579F0_terseLabel_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract_9981C3A11C46DAA4FBF6F8BF700579F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other income (expense): </link:label>
<link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_9981C3A11C46DAA4FBF6F8BF700579F0_label_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract_9981C3A11C46DAA4FBF6F8BF700579F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Nonoperating Income (Expense) [Abstract] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_9981C3A11C46DAA4FBF6F8BF700579F0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_InvestmentIncomeInterest_6B0F8B79EF9848CF3267F8BF7005506F_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeInterest_6B0F8B79EF9848CF3267F8BF7005506F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest income </link:label>
<link:label id="lab_us-gaap_InvestmentIncomeInterest_6B0F8B79EF9848CF3267F8BF7005506F_label_en-US" xlink:label="lab_us-gaap_InvestmentIncomeInterest_6B0F8B79EF9848CF3267F8BF7005506F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Investment Income, Interest </link:label>
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<link:label id="lab_us-gaap_CashAcquiredFromAcquisition_51B212D295F0F68700413C7E18C8C2EE_terseLabel_en-US" xlink:label="lab_us-gaap_CashAcquiredFromAcquisition_51B212D295F0F68700413C7E18C8C2EE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash acquired </link:label>
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<link:label id="lab_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_6001EE1D4911AF20F4223C7E18C84DF7_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_6001EE1D4911AF20F4223C7E18C84DF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill, amount expected to be deductible for tax purposes </link:label>
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<link:label id="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_4A0EED45DB757BEF37743C7E18C84470_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_4A0EED45DB757BEF37743C7E18C84470" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Actual revenue from acquiree </link:label>
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<link:label id="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_106F77DDD47C74AE603D3C7E18C895CD_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationContingentConsiderationLiability_106F77DDD47C74AE603D3C7E18C895CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Undiscounted contingent payments </link:label>
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<link:label id="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_CB21EC5A5C17EB8EBAA73C7E18C98D70_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_CB21EC5A5C17EB8EBAA73C7E18C98D70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payments for contingent liabilities </link:label>
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<link:label id="lab_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_159F6283C347666600D1F8BF6C14E377_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock_159F6283C347666600D1F8BF6C14E377" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Notional and Fair Value of Foreign Currency Contracts </link:label>
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<link:label id="lab_us-gaap_NumberOfReportableSegments_F5C2565F6C3FB3EB22D1D2E45BB7CF55_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_418D5031FB8556C0A7C765B1BFB92FFF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Number of reportable segments </link:label>
<link:label id="lab_us-gaap_NumberOfReportableSegments_F5C2565F6C3FB3EB22D1D2E45BB7CF55_label_en-US" xlink:label="lab_us-gaap_NumberOfReportableSegments_418D5031FB8556C0A7C765B1BFB92FFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Number of Reportable Segments </link:label>
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<link:label id="lab_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_541C7E7EC665EBF2780CD2E45D39F84F_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_6D34CA7781AA59879C77AB2823472218" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> SUPPLEMENTAL BALANCE SHEET INFORMATION </link:label>
<link:label id="lab_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_541C7E7EC665EBF2780CD2E45D39F84F_label_en-US" xlink:label="lab_us-gaap_SupplementalBalanceSheetDisclosuresTextBlock_6D34CA7781AA59879C77AB2823472218" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Balance Sheet Disclosures [Text Block] </link:label>
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<link:label id="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_4A95CC6900ED97BA819C293A5E0E74C9_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_26C7C169FC69532781C5B59CBD7A6C02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Equity Method Investments [Table] </link:label>
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<link:label id="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_532B753EAF479666565A293A5E0FD087_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_34590BA4E7CD5F9B93D39AABBA6F4D49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ownership percentage </link:label>
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<link:label id="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_411EF0438DF06B708F0318B0D124CB9A_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_411EF0438DF06B708F0318B0D124CB9A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating Leases, After Adoption of 842 </link:label>
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<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_E13E0D6E70FDD75FAA9D18B0D1244565_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_E13E0D6E70FDD75FAA9D18B0D1244565" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
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<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_3AAF156919681F18EFE918B0D1257774_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_3AAF156919681F18EFE918B0D1257774" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_3AAF156919681F18EFE918B0D1257774_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_3AAF156919681F18EFE918B0D1257774" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Liability, Payments, Due Year Three </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1A058A3F8F1373E87E9618B0D1277774_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1A058A3F8F1373E87E9618B0D1277774" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2020 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1A058A3F8F1373E87E9618B0D1277774_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1A058A3F8F1373E87E9618B0D1277774" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due Year Two </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_1A058A3F8F1373E87E9618B0D1277774" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_79D7B2FCFF6090E0365C18B0D127F23C_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_79D7B2FCFF6090E0365C18B0D127F23C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2021 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_79D7B2FCFF6090E0365C18B0D127F23C_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_79D7B2FCFF6090E0365C18B0D127F23C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due Year Three </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_08E73F6BAB07E53B203318B0D12733F6_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_08E73F6BAB07E53B203318B0D12733F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2022 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_08E73F6BAB07E53B203318B0D12733F6_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_08E73F6BAB07E53B203318B0D12733F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due Year Four </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_6BE2B2504F798D12A23518B0D1279EA9_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_6BE2B2504F798D12A23518B0D1279EA9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2023 </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_6BE2B2504F798D12A23518B0D1279EA9_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_6BE2B2504F798D12A23518B0D1279EA9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due Year Five </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_18A59B4C618DB9399EBC18D1A5DE0FAC_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_18A59B4C618DB9399EBC18D1A5DE0FAC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Thereafter </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_18A59B4C618DB9399EBC18D1A5DE0FAC_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_18A59B4C618DB9399EBC18D1A5DE0FAC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payments, Due after Year Five </link:label>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_AF1E89E978F9FFC3F70718B0D128CAF0_totalLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_AF1E89E978F9FFC3F70718B0D128CAF0" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total minimum future lease payments </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_AF1E89E978F9FFC3F70718B0D128CAF0_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_AF1E89E978F9FFC3F70718B0D128CAF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Payment, Due </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_AF1E89E978F9FFC3F70718B0D128CAF0" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_CEFB292A7A0DD3E13EBE18B0D128ED3F_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_CEFB292A7A0DD3E13EBE18B0D128ED3F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Less: Imputed interest </link:label>
<link:label id="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_CEFB292A7A0DD3E13EBE18B0D128ED3F_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_CEFB292A7A0DD3E13EBE18B0D128ED3F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Finance Lease, Liability, Undiscounted Excess Amount </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_CEFB292A7A0DD3E13EBE18B0D128ED3F" xlink:type="locator"/>
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<link:label id="lab_us-gaap_FinanceLeaseLiability_17D989B32CCC74C77F8B18B0D128E56B_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability_17D989B32CCC74C77F8B18B0D128E56B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Total lease liabilities </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaap_FinanceLeaseLiability_17D989B32CCC74C77F8B18B0D128E56B" xlink:type="locator"/>
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<link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_255BE8E7F932B6693D3FD2E45DEF372D_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_B5C54A7F95BC50348FE5753CABD4ABF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> INCOME TAXES </link:label>
<link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_255BE8E7F932B6693D3FD2E45DEF372D_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_B5C54A7F95BC50348FE5753CABD4ABF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Disclosure [Text Block] </link:label>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_B5C54A7F95BC50348FE5753CABD4ABF7" xlink:type="locator"/>
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<link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_941ECF62928F17D15EE3D2E45C55E1AD_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_3A48A4A0685B566B8F9A0E2EEF54FBE6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> REVENUE FROM CONTRACTS WITH CUSTOMERS </link:label>
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<link:label id="lab_dei_EntityFileNumber_1352851AA157D5C6A1F1B66D192B8867_label_en-US" xlink:label="lab_dei_EntityFileNumber_1352851AA157D5C6A1F1B66D192B8867" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity File Number </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_1352851AA157D5C6A1F1B66D192B8867" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber_1352851AA157D5C6A1F1B66D192B8867" xlink:to="lab_dei_EntityFileNumber_1352851AA157D5C6A1F1B66D192B8867" xlink:type="arc"/>
<link:label id="lab_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Registrant Name </link:label>
<link:label id="lab_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914_label_en-US" xlink:label="lab_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Registrant Name </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914" xlink:to="lab_dei_EntityRegistrantName_CF296674C607CC3289B8B66D192BE914" xlink:type="arc"/>
<link:label id="lab_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label>
<link:label id="lab_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32" xlink:to="lab_dei_EntityIncorporationStateCountryCode_6D858D8429EDD887A6FCB66D192BDD32" xlink:type="arc"/>
<link:label id="lab_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Tax Identification Number </link:label>
<link:label id="lab_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Tax Identification Number </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192" xlink:to="lab_dei_EntityTaxIdentificationNumber_1442D36AE589097A20DEB66D192B7192" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line One </link:label>
<link:label id="lab_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line One </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558" xlink:to="lab_dei_EntityAddressAddressLine1_FCC29BA7D36797359035B66D192C1558" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label>
<link:label id="lab_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4" xlink:to="lab_dei_EntityAddressCityOrTown_D53E80839C340C5207A9B66D192C92E4" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label>
<link:label id="lab_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525" xlink:to="lab_dei_EntityAddressStateOrProvince_F75C26A102E1D547F40FB66D192C4525" xlink:type="arc"/>
<link:label id="lab_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label>
<link:label id="lab_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264" xlink:to="lab_dei_EntityAddressPostalZipCode_64B3AD277C68B2116076B66D192C7264" xlink:type="arc"/>
<link:label id="lab_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label>
<link:label id="lab_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5_label_en-US" xlink:label="lab_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5" xlink:to="lab_dei_CityAreaCode_BD2EB496A4C84A91DECFB66D192CEBA5" xlink:type="arc"/>
<link:label id="lab_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label>
<link:label id="lab_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D_label_en-US" xlink:label="lab_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D" xlink:to="lab_dei_LocalPhoneNumber_7AC907355F1CDA067A82B66D192C238D" xlink:type="arc"/>
<link:label id="lab_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Title of 12(b) Security </link:label>
<link:label id="lab_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB_label_en-US" xlink:label="lab_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Title of 12(b) Security </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB" xlink:to="lab_dei_Security12bTitle_537C3FA73141FA4AB2D7B66D192D43BB" xlink:type="arc"/>
<link:label id="lab_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Trading Symbol </link:label>
<link:label id="lab_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B_label_en-US" xlink:label="lab_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Trading Symbol </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B" xlink:to="lab_dei_TradingSymbol_42D2E44951B5196244A2B66D192D208B" xlink:type="arc"/>
<link:label id="lab_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Security Exchange Name </link:label>
<link:label id="lab_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7_label_en-US" xlink:label="lab_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Security Exchange Name </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7" xlink:to="lab_dei_SecurityExchangeName_F3806A1785F29DEE0797B66D192D63E7" xlink:type="arc"/>
<link:label id="lab_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label>
<link:label id="lab_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32" xlink:to="lab_dei_EntityCurrentReportingStatus_E2E13D849D5EB1EC89E3B66D192D0E32" xlink:type="arc"/>
<link:label id="lab_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Interactive Data Current </link:label>
<link:label id="lab_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Interactive Data Current </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2" xlink:to="lab_dei_EntityInteractiveDataCurrent_196BDF02A6135C497234B66D192E2DC2" xlink:type="arc"/>
<link:label id="lab_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label>
<link:label id="lab_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E_label_en-US" xlink:label="lab_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E" xlink:to="lab_dei_EntityFilerCategory_738B5BBA4E5487649CEEB66D192E3E4E" xlink:type="arc"/>
<link:label id="lab_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8_terseLabel_en-US" xlink:label="lab_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Smaller Reporting Company </link:label>
<link:label id="lab_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8_label_en-US" xlink:label="lab_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8" xlink:type="locator"/>
<link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8" xlink:to="lab_dei_EntitySmallBusiness_9D38203306952378A442B66D192E5FE8" xlink:type="arc"/>
<link:label id="lab_dei_EntityEmergingGrowthCompany_9DBB965291C9C400FD2EB66D192EEE71_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_9DBB965291C9C400FD2EB66D192EEE71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Emerging Growth Company </link:label>
<link:label id="lab_dei_EntityEmergingGrowthCompany_9DBB965291C9C400FD2EB66D192EEE71_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_9DBB965291C9C400FD2EB66D192EEE71" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label>
<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_9DBB965291C9C400FD2EB66D192EEE71" xlink:type="locator"/>
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1 Subsequent Filing that References this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/17/21  Charles River Labs Int’l, Inc.    10-K       12/26/20  138:18M
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